| 单词 | beam |
| 释义 | beam (biːm ) Word forms: beams , beaming , beamed 1. verb If you say that someone is beaming, you mean that they have a big smile on their face because they are happy, pleased, or proud about something. [written] Frances beamed at her friend with undisguised admiration. [V + at/with] 'Welcome back,' she beamed. [VERB with quote] ...the beaming face of a 41-year-old man on the brink of achieving his dreams. [VERB-ing] Synonyms: smile, grin, be all smiles 2. countable noun [usually noun NOUN] B2 A beam is a line of energy, radiation, or particles sent in a particular direction. ...high-energy laser beams. ...a beam of neutrons. [+ of] 3. verb If something beams radio signals or television pictures or they are beamed somewhere, they are sent there by means of electronic equipment. The interview was beamed live across the state. [be VERB-ed preposition/adverb] The live satellite broadcast was beamed into homes across America. [VERB preposition/adverb] ...a ship which is due to begin beaming radio broadcasts to South East Asia. [VERB noun preposition/adverb] Synonyms: transmit, show, air, broadcast 4. countable noun [noun NOUN] B2 A beam of light is a line of light that shines from an object such as a lamp. 5. verb If something such as the sun or a lamp beams down, it sends light to a place and shines on it. A sharp white spot-light beamed down on a small stage. [VERB adverb/preposition] All you see of the outside world is the sunlight beaming through the cracks in the roof. [VERB adverb/preposition] Synonyms: radiate, flash, shine, glow 6. countable noun A beam is a long thick bar of wood, metal, or concrete, especially one used to support the roof of a building. The ceilings are supported by oak beams. Synonyms: rafter, support, timber, spar 7. singular noun [usually the NOUN] In gymnastics, the beam is a piece of equipment that consists of a narrow wooden bar on which gymnasts balance and perform movements. 8. See also off-beam Idioms: be way off beam [British] to be completely wrong or mistaken The writer was hilariously way off beam in his criticism of soccer. Easy Learning Idioms Dictionary. Copyright © HarperCollins Publishers Collocations: beam a signal The reference and signal beam would then be used to excite the electrons from the shallow traps back to the deep traps. Retrieved from Wikipedia CC BY-SA 3.0 For example, in the case of a hologram, illuminating the grating with just the reference beam causes the reconstruction of the original signal beam. Retrieved from Wikipedia CC BY-SA 3.0 The flower-like adornment atop her hat acts as a signal beam, but it apparently only works when in her robotic form. Retrieved from Wikipedia CC BY-SA 3.0 High gain antenna may be of many designs, but all allow transmitting a narrow signal beam over greater distance than a non-directional antenna, often nulling out nearby interference sources. Retrieved from Wikipedia CC BY-SA 3.0 You may be failing to pick up the love signals beamed your way from someone you see as just an acquaintance. The Sun It had beamed back data for 12 years on how the solar system was formed. The Sun (2016) And as one the jury beamed back their gratitude, as pleased as a patted dog. KANDAHAR COCKNEY: A Tale of Two Worlds (2004) Now all he could do was watch the grainy images beamed back to us. Times, Sunday Times (2014) Around the perimeter of the field, dozens of cameras beamed back the scene to audiences around the world. Times, Sunday Times (2010) David grabbed the otoscope off the floor, raised Bronner's eyelids, and shone the beam of light into his pupils. DO NO HARM (2002) In a dark gallery, a whirring projector throws a beam of light onto a waiting screen. Times, Sunday Times (2007) Crouching down out of the wind he directed the torch at the sandface, running the beam of light along the strata. MIDNIGHT IS A LONELY PLACE (2003) The familiar, cavernous blue of deep water stretches below, occasionally probed by a wavering beam of sunlight that has pierced the armour of the slick above. Times, Sunday Times She was our companion, our support, our joy, and our beam of sunlight. Times, Sunday Times A similar phenomenon happens if glass objects like mirrors or ornaments are left too close to windows and focus a beam of sunlight on to flammable material. Times, Sunday Times In a current of up to 2cm 1, the swarm maintains its position, usually in a position where a beam of sunlight penetrates the canopy. Retrieved from Wikipedia CC BY-SA 3.0 He observed that audible sound could be created by illuminating an intermittent beam of sunlight onto a rubber sheet. Retrieved from Wikipedia CC BY-SA 3.0 The system measures the distance that each beam travels so that the car's computer can create a constantly updated three-dimensional map of the car's surroundings. Times, Sunday Times Between hutches, the beam travels in a transport tube. Retrieved from Wikipedia CC BY-SA 3.0 When curved mirrors are used in a nearly confocal configuration, the beam travels on a circular zigzag path. Retrieved from Wikipedia CC BY-SA 3.0 As the beam travels through the atmosphere, tiny fractions of the light are scattered by aerosols. Retrieved from Wikipedia CC BY-SA 3.0 The fixed path beam travels a known and constant distance, whereas the variable path beam has its path length changed via rotating mirrors or other path changing mechanisms. Retrieved from Wikipedia CC BY-SA 3.0 The girth is wide, but so is that beaming smile. Times, Sunday Times (2006) He delighted in being photographed delivering a beaming smile and a high karate kick. Times, Sunday Times (2014) If his ruddy complexion and beaming smile was anything to go by, he loved it. Times, Sunday Times (2006) Turn a bright beam on that genius and it becomesinvisible. Times, Sunday Times Instead of shelling out 50 on new glass, simply rub toothpaste on your lights to restore the surface and get a bright beam again. The Sun As the electrons pass through specially designed magnets at each vertex, their sudden change of direction causes them to emit an exceptionally bright beam of electro-magnetic radiation. Retrieved from Wikipedia CC BY-SA 3.0 Oil enables differentiation among degrees of reflective light, from shadow to bright beams, and minute depictions of light effects through the use of transparent glazes. Retrieved from Wikipedia CC BY-SA 3.0 According to legends, bright beams of light filled the labour room during his birth. Retrieved from Wikipedia CC BY-SA 3.0 Three-stepped bracket complexes are composed of three of the 3-on-1 looking brackets stacked on top of each other with each 3-on-1 bracket supporting a ceiling beam. Retrieved from Wikipedia CC BY-SA 3.0 Many ceiling beams, now lovingly exposed, may once have been concealed by rich plasterwork. Times, Sunday Times The property has three bedrooms and two receptions, including a kitchen-diner with original stonework, ceiling beams and a woodburner in the fireplace. Times,Sunday Times Dating from the 17th century, with 1960s additions, it has original fireplaces and exposed wall and ceiling beams. Times, Sunday Times It has two double bedrooms and a sitting/dining room featuring exposed ceiling beams and an open fireplace with a slate hearth. Times, Sunday Times A concrete beam had crashed to within a fraction of her head. Times, Sunday Times I go for the tough option first - the concrete beam. Times, Sunday Times The station features an exposed concrete beam ceiling and its walls are decorated with blue-gray ceramic tiles, which replaced the original mosaic covering. Retrieved from Wikipedia CC BY-SA 3.0 The river crossing was apparently replaced by a concrete beam bridge crossing, at a different crossing point, ca. 1994. Retrieved from Wikipedia CC BY-SA 3.0 The existing technique of construction of the time was using concrete with a plane straight steel in the center of a concrete beam. Retrieved from Wikipedia CC BY-SA 3.0 For informal schemes, use something adjustable so you can direct the beam where you want it. Times, Sunday Times Software has been designed to allow the different cameras to triangulate and pinpoint the location of the person directing the beam. Times, Sunday Times Officers using power torches direct the beams at the crafts, which are navigated via a live camera feed. The Sun In practice, several more mirrors may be used to direct the beams in the required directions. Retrieved from Wikipedia CC BY-SA 3.0 These include thousands of different crystals, liquids, and gases which, when electrically charged, will emit a beam of light. Times, Sunday Times The heat ray emits a beam from the car's aerial, directly ahead of the vehicle. Retrieved from Wikipedia CC BY-SA 3.0 A stick emits a beam of energy which leaves behind a sharp scent like that of a nearby lightning strike. Retrieved from Wikipedia CC BY-SA 3.0 The cannon emits a beam of polaron particles, the fictional in-universe antimatter counterpart of the muon (not to be confused with the actual polaron or the actual antimuon). Retrieved from Wikipedia CC BY-SA 3.0 Each capital ship emanates a powerful force field energy beam that surrounds and protects the base. Retrieved from Wikipedia CC BY-SA 3.0 The crystal in his mask fires an energy beam. Retrieved from Wikipedia CC BY-SA 3.0 This jewel was capable of emitting an energy beam. Retrieved from Wikipedia CC BY-SA 3.0 Emits an energy beam, which hurts at high rate. Retrieved from Wikipedia CC BY-SA 3.0 Projects included gas metal arc welding, energy beam processes, solid phase joining and robotics. Retrieved from Wikipedia CC BY-SA 3.0 There was a punching bag hanging from an exposed beam. The Times Literary Supplement The exposed beam soffits were protected against fire by plaster. Retrieved from Wikipedia CC BY-SA 3.0 The left and right aisles begin with ribbed vaults and then transition into an exposed beam ceiling. Retrieved from Wikipedia CC BY-SA 3.0 The high vaulted ceilings are painted in rich hues of red, blue, gold and emerald with exposed beam work. Retrieved from Wikipedia CC BY-SA 3.0 The rooms on the west feature corner fireplaces; the one in front has an exposed beam ceiling. Retrieved from Wikipedia CC BY-SA 3.0 She hunches in fear, but her face beams love at him. Times, Sunday Times He leans heavily on a stick, but his face beams with delight. Times, Sunday Times Now his face beams down on the street he used to live in. Times, Sunday Times They needed to fire a beam through silk samples. Times, Sunday Times Could also fire a beam from its forehead. Retrieved from Wikipedia CC BY-SA 3.0 The device fires a beam into a suspicious mole then analyses skin pigments within it. The Sun The team fired a beam of fluorine ions at a proton-rich target to produce, which then decays into oxygen and two protons. Retrieved from Wikipedia CC BY-SA 3.0 The experiment successfully demonstrated that a particle beam would operate and propagate as predicted outside the atmosphere and that there are no unexpected side-effects when firing the beam in space. Retrieved from Wikipedia CC BY-SA 3.0 He would sweep the flashlight beam over the erected two-by-four studs and see the light travel between them, faintly spread against the night sky. Globe and Mail Previous radar systems used parabolic reflectors or similar systems to produce a narrow beam of radio energy rather like a flashlight beam. Retrieved from Wikipedia CC BY-SA 3.0 Flashlight beams act as a reticle. Retrieved from Wikipedia CC BY-SA 3.0 By 1820 throwing was done on rectangular frames and the width of the building was dependent solely on the strength of the floor beam. Retrieved from Wikipedia CC BY-SA 3.0 After the floor beams were installed, at alternate floor beam panel points a set of diagonal bracing struts were installed. Retrieved from Wikipedia CC BY-SA 3.0 The basement fire, burning through a supporting floor beam., caused a section of the floor to drop into the basement as it rushed up into the main level. Retrieved from Wikipedia CC BY-SA 3.0 Cast-iron was used for the roof trusses and floor beams. Retrieved from Wikipedia CC BY-SA 3.0 The plane parts destroyed three floor beams, and severely compromised the building's internal structure. Retrieved from Wikipedia CC BY-SA 3.0 To minimise the spill area, focus the beam from flood to spot. Times, Sunday Times It's like those flashlights that you tighten the lid to focus the beam. Christianity Today A similar phenomenon happens if glass objects like mirrors or ornaments are left too close to windows and focus a beam of sunlight on to flammable material. Times, Sunday Times This reduces the ability to finely focus the beam. Retrieved from Wikipedia CC BY-SA 3.0 The plant uses concentrating parabolic mirrors to focus a beam of light on a tower making steam for electricity generating turbines. Retrieved from Wikipedia CC BY-SA 3.0 Two drones began construction by hovering in a circular motion around a horizontal beam on one of the scaffolding towers. Times, Sunday Times Without either the vertical or the horizontal beam, its structure fails. Christianity Today For example, a horizontal beam tends to sag. Retrieved from Wikipedia CC BY-SA 3.0 The press would consist of a large horizontal beam held up by two upright fixtures in the front and on upright fixture in the front. Retrieved from Wikipedia CC BY-SA 3.0 Above the entrance, a horizontal beam, embellished with a mosaic depicting drama, comedy and music, intersects the strong vertical mullions. Retrieved from Wikipedia CC BY-SA 3.0 He and colleagues stumbled on the blocking ability of the infrared beam while investigating using it to damage mosquito sensory systems. Times, Sunday Times It sends an infrared beam out to the surface of the food or drink and 'captures the reflected wavelengths that carry the signature of its composition'. Times, Sunday Times It emits a powerful but invisible infrared beam that allows a high-tech camera to capture a clear portrait at a distance of up to five metres, regardless of lighting conditions. Times, Sunday Times This worked by using a low power infrared beam (not a laser) from a distance to detect the sound vibrations in the glass windows. Retrieved from Wikipedia CC BY-SA 3.0 The sensor chip determines where infrared beam was broken. Retrieved from Wikipedia CC BY-SA 3.0 Looking at the intense beam causes a short-lived effect similar to staring at the sun forcing the target to turn away. Times, Sunday Times At night, an intense beam of light will be projected above the spire, being visible over 1000 ft into the air above the tower. Retrieved from Wikipedia CC BY-SA 3.0 The projector emits an intense beam of light above into the sky at an angle that varies with the rotation. Retrieved from Wikipedia CC BY-SA 3.0 They are also used in very high power laser systems, which use chains of optical amplifiers to produce an intense beam. Retrieved from Wikipedia CC BY-SA 3.0 This will prevent degradation of the detector from the more intense beam energies. Retrieved from Wikipedia CC BY-SA 3.0 Last week the engineers set up a pontoon, digger and 21m iron beam, which will anchor 200 tonnes of scaffolding. Times, Sunday Times Among its engineering features were an early tunnel, a cast iron beam bridge and an outstanding timber viaduct on masonry piers. Retrieved from Wikipedia CC BY-SA 3.0 The bridge failed because a cast iron beam was used to support the loads of passing trains. Retrieved from Wikipedia CC BY-SA 3.0 A cast iron beam girder bridge was used here to save headway in the street below the line. Retrieved from Wikipedia CC BY-SA 3.0 Passengers clutching suitcases are jostling on a narrow platform beneath a corrugated roof and wrought iron beams dating from the 1860s. Times, Sunday Times All the elements are usually mounted on a metal beam or bracket along the antenna's central axis. Retrieved from Wikipedia CC BY-SA 3.0 These piers support a single metal beam carrying a trough with more than 13,000 tonnes of water, 2.2 meters deep. Retrieved from Wikipedia CC BY-SA 3.0 Some have developed into more permanent structures, supported by wood and metal beams and other add-ons. Times, Sunday Times Running for three weeks, this throbbing, clanging piece of collective art uses the pipes, metal beams and fabric of the building to generate sounds. Times, Sunday Times However, the entire metal grate deck and steel truss was replaced in 1995 with a slightly wider modern metal beam structure and an asphalt covered roadway. Retrieved from Wikipedia CC BY-SA 3.0 Power for takeoff would be provided by batteries, but the platform would acquire the microwave beam after launch and self-power from that point on. Retrieved from Wikipedia CC BY-SA 3.0 A pilot microwave beam emitted from the center of the rectenna on the ground establishes a phase front at the transmitting antenna. Retrieved from Wikipedia CC BY-SA 3.0 There has yet to be testing for long-term side effects of exposure to the microwave beam. Retrieved from Wikipedia CC BY-SA 3.0 The helicopter carried a rectifying antenna or rectenna array incorporating thousands of diodes to convert the microwave beam into useful electrical power. Retrieved from Wikipedia CC BY-SA 3.0 Along the inside the fence there are rows of barbwire, microwave beams and many other security features. Retrieved from Wikipedia CC BY-SA 3.0 Some stellar explosions, called gamma-ray bursters, are especially dangerous because all their lethal rays are focused into a narrow beam, like a searchlight. The Sun It fired a narrow beam of light at the ground which tracked backwards and forwards as if it were looking for something. The Sun To keep from rousing other sleepers, the device uses a set of parametric speakers capable of focusing sound into a narrow beam. Christianity Today Focusing on the narrow beam of light they provide can cause a sort of tunnel vision that can trigger feelings of nausea in those prone to motion sickness. Times, Sunday Times The sun cast a narrow beam like a flashlight moving over a table as it traced flat circles that varied over the 365-day cycles. Retrieved from Wikipedia CC BY-SA 3.0 Over the years the huge oak beam that plunges into the wall above my bed has shrunk. Times, Sunday Times The bell, weighing 100kg, had been taken from an oak beam. The Sun He leapt high into the air and crashed his head against the oak beam running the length of the lounge. The Sun A corridor with an open oak beam roofs leads from the lobby to the east wing on the garden side. Retrieved from Wikipedia CC BY-SA 3.0 Originally, a gallery, or balcony, existed at the west end of the nave, supported by a massive hewn oak beam. Retrieved from Wikipedia CC BY-SA 3.0 Prices start at 145,000 for a small one-bedder, rising to 495,000 for the largest, a three-bedroom, three-bathroom property over two floors, with original beams. Times, Sunday Times Rooms have exposed stone walls and original beams, modern art, wicker sofas and designer lamps. Times, Sunday Times It has some of the nicest rooms around, with original beams and dazzling silver decor. Times, Sunday Times It has original beams, a stylish kitchen/diner and a garden that leads through gates to a river. Times, Sunday Times The laws of classical physics predict that the collection of condensed silver atoms on the plate should form a thin solid line in the same shape as the original beam. Retrieved from Wikipedia CC BY-SA 3.0 The other ends were pushed on by means of block and tackle attached to the hull and overhead beams and hauled on by sailors. Retrieved from Wikipedia CC BY-SA 3.0 Nearing the peak, one of the overhead beams cracks. Retrieved from Wikipedia CC BY-SA 3.0 Overhead beams are exposed on the interior, and the interior walls are composed of unadorned vertical wood siding. Retrieved from Wikipedia CC BY-SA 3.0 The entranceway has rectangular overhead beams that span the width of the passageway, wide enough to allow sentries to walk across. Retrieved from Wikipedia CC BY-SA 3.0 Every evening, a different pair of fishermen heads out on the boat, searching the water with a powerful beam of light hooked up to a car battery. Retrieved from Wikipedia CC BY-SA 3.0 This yields a more powerful beam at the expense of the total number of lasers. Retrieved from Wikipedia CC BY-SA 3.0 As they get near, a powerful beam from the planet slices and destroys the enemy ships. Retrieved from Wikipedia CC BY-SA 3.0 The sun's rays were focused into such powerful beams by the glass that they ignited a wooden panel under the window sill, eventually setting the entire living room ablaze. Times, Sunday Times The stone starts to produce a beam of light which rejuvenates both of them. Retrieved from Wikipedia CC BY-SA 3.0 They produce a beam with a central bright area and a diffuse general illumination around it. Retrieved from Wikipedia CC BY-SA 3.0 The scanner was built in a manner to produce a beam that was about 40 wide in azimuth and less than 1 high in elevation. Retrieved from Wikipedia CC BY-SA 3.0 Photons from the laser beam produce an oscillating polarization in the molecules, exciting them to a virtual energy state. Retrieved from Wikipedia CC BY-SA 3.0 Completely independent beams can not usually be combined to produce a beam with higher radiance than each beam has alone. Retrieved from Wikipedia CC BY-SA 3.0 Similar problems exist with stereotactic ablative radiotherapy and with proton beam therapy. Times, Sunday Times (2015) The new fund will look to back innovations that advance the treatment of brain tumours, including medicines and proton beam machines. Times, Sunday Times (2016) It specialises in funding proton beam treatment. The Sun (2014) He said he had offered to sell his property to pay for the proton beam. Times, Sunday Times (2014) A proton beam stops and is much less harmful, although the dose of radiation is the same. The Sun (2015) In the loft, police found a long strap, tied to the roof beam, which dropped through the hatch to the floor. Times, Sunday Times He survived by clinging to a roof beam for five hours. Times, Sunday Times Fresh problems- most spectacularly the collapse of a roof beam - arose in recent weeks, causing construction progress to slow to a near halt. Times, Sunday Times The collapse of a roof beam caused early delays, which were then compounded by problems with sewers, sub-contractors and a row with workers. Times, Sunday Times Every roof beam was inspected. Times, Sunday Times He and his colleagues merged them together in a single beam, before using a flash of light to trigger a chemical reaction. Times, Sunday Times Single beam spectrophotometers use only one beam of light for measurements. The Scientist The principle was simple: while a single beam did little damage to normal tissue, where they crossed the cumulative dose was lethal. Times, Sunday Times You should never aim a single beam into the audience. Retrieved from Wikipedia CC BY-SA 3.0 In addition to the single beam echo sounder, there are echo sounders that are capable of receiving many return pings. Retrieved from Wikipedia CC BY-SA 3.0 It was she who designed the open-plan kitchen and dining area and worked with an engineer to conceal the supporting steel beam in the ceiling. Times, Sunday Times Because of the steel beam, he wonders if it's connected structurally to the house. Globe and Mail He says it's about five feet square and five feet deep, with thick, reinforced concrete walls and a steel beam across the top. Globe and Mail It was a steel beam bridge 319m ft long, convert wide and carried on two double pylons of reinforced concrete 68 m high. Retrieved from Wikipedia CC BY-SA 3.0 In separate incidents during construction in 1959, a 20ft m steel beam and a brick fell to street level from upper floors. Retrieved from Wikipedia CC BY-SA 3.0 This will need to be dampproofed and the new access will require a structural beam. Times, Sunday Times He also expressed irritation at the theatre's squares being cast into shadow and the prospect of theatregoers emerging during an interval to a view of structural beams and supports. Times, Sunday Times Half of its 129 rooms have been made into duplexes with oversized windows and exposed structural beams. Times, Sunday Times The ceiling already has a couple of structural beams holding it up; additional joists could be added to give it a more deliberate attic appearance. Times, Sunday Times In the simplest cases vertical structural beams are driven into the ground directly. Retrieved from Wikipedia CC BY-SA 3.0 At noon, a sun beam through the hole, alit on the meridian strip. Retrieved from Wikipedia CC BY-SA 3.0 Yet, here we were yesterday, with the sun beaming, wind blowing and stumps in the ground, waiting four hours for the game to begin. Times, Sunday Times Their symbol of a rising red sun with red sun beams over a white background. Retrieved from Wikipedia CC BY-SA 3.0 With only 15 seconds to take cover, he stepped under a reinforced support beam in the ceiling. Times, Sunday Times A red dot painted on a support beam in a train station signalled that he was to return immediately. Times, Sunday Times Investigators later identified cracks in the main support beam connecting the wing to the fuselage. Retrieved from Wikipedia CC BY-SA 3.0 The tin has a slight cove around the edges and central support beam. Retrieved from Wikipedia CC BY-SA 3.0 As he made his escape, he hit his head on a wooden support beam and fell off the roof, but survived. Retrieved from Wikipedia CC BY-SA 3.0 The two ground-floor rooms have a massive timber beam running through them, with neat rows of floor joists notched in. Times, Sunday Times There's not a timber beam in sight. Times, Sunday Times The timber beam consisted of single wooden king post with wrought iron straps and wooden arch heads at each end. Retrieved from Wikipedia CC BY-SA 3.0 The bridge has 16 timber beam spans of 13.7 m and one wrought iron and timber lifting span of 20.3 m supported by cast iron piers. Retrieved from Wikipedia CC BY-SA 3.0 However, good period features remain, such as exposed timber beams and an inglenook fireplace. Times, Sunday Times He spots us and realises his mistake immediately as the head fixes him in his tractor beam and orders him out. Times, Sunday Times Now scientists claim to have developed the first real tractor beam - on a much smaller scale. Times, Sunday Times Welcome to the property market in the capital — and anywhere within its commutable tractor beam. Times, Sunday Times In vehicle mode used a tractor beam which he uses to haul cargo as large as himself while flying. Retrieved from Wikipedia CC BY-SA 3.0 In other lightcraft concepts, the laser arrives at the vehicle from above, and operates as an ablative laser tractor beam. Retrieved from Wikipedia CC BY-SA 3.0 He got his nickname at 13 after being seen creeping along a five-inch wide beam 50ft up to evade police. The Sun She has a wide beam and sits low in the water. Retrieved from Wikipedia CC BY-SA 3.0 She was constructed without armaments, with a wide beam to provide space for cargo. Retrieved from Wikipedia CC BY-SA 3.0 The forty-year-old fell four feet (1.2 m) into the water while working on an 18 inch (46 cm) wide beam. Retrieved from Wikipedia CC BY-SA 3.0 Spoiled parabolic antennas produce a narrow beam in one dimension and a relatively wide beam in the other. Retrieved from Wikipedia CC BY-SA 3.0 Rather than open beams, the room has a plaster ceiling formed into rectangular panels but leaving the central wood beam uncovered. Times, Sunday Times In knocking down a wall to merge the two rooms, he found an ancient structural wood beam, so naturally kept it. Times, Sunday Times Houses and their interiors was built of wood beam. Retrieved from Wikipedia CC BY-SA 3.0 It was made out of a yellow wood beam salvaged from the old school building when it was demolished in 1949. Retrieved from Wikipedia CC BY-SA 3.0 A solid, circular section wood beam was inserted into this steel tube, extending it rearwards. Retrieved from Wikipedia CC BY-SA 3.0 When workmen began cutting through a horizontal wooden beam that ran across the outside wall of the house, the building started to fall in. Times, Sunday Times Usually the chair was fastened to a long wooden beam fixed as a seesaw on the edge of a pond or river. Retrieved from Wikipedia CC BY-SA 3.0 On the ground floor of the right wing, a restaurant was put in, with wooden beam ceiling and a spacious cloakroom. Retrieved from Wikipedia CC BY-SA 3.0 Its wooden beam was too rotten to be preserved and a replacement was made. Retrieved from Wikipedia CC BY-SA 3.0 A wooden beam had been suspended between two trestles at right-angles across the sidewalk. Retrieved from Wikipedia CC BY-SA 3.0 For a synchrotron radiation facility, for example, the electron beam produces an x-ray beam that then travels down a beamline before reaching the experiment. Retrieved from Wikipedia CC BY-SA 3.0 Film thicknesses may range from a few nm to several 100 nm, and such thin films are still fully penetrated by the x-ray beam. Retrieved from Wikipedia CC BY-SA 3.0 The peak spectral radiance and the average spectral radiance are both important properties of an x-ray beam. Retrieved from Wikipedia CC BY-SA 3.0 In a synchrotron light source, low emittance means that the resulting x-ray beam will be small, and result in higher brightness. Retrieved from Wikipedia CC BY-SA 3.0 In the early days, radiotherapy was comparatively crude: patients were blasted with x-ray beams from different directions, aimed in such a way as to converge on the tumour. Times, Sunday Times Translations: Chinese: 光束, 绽开笑容 Japanese: 笑顔, にっこりとする |
| 随便看 |
|
英语词典包含147115条英英释义在线翻译词条，基本涵盖了全部常用单词的英英翻译及用法，是英语学习的有利工具。