英语词汇“orbit”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典

单词

orbit

释义

orbit¹ verborbit² noun

orbitor‧bit1 /ˈɔːbɪt $ ˈɔːr-/ verb [intransitive, transitive]

VERB TABLE

orbit

Simple Form
Present	I, you, we, they	orbit
	he, she, it	orbits
Past	I, you, he, she, it, we, they	orbited
Present perfect	I, you, we, they	have orbited
	he, she, it	has orbited
Past perfect	I, you, he, she, it, we, they	had orbited
Future	I, you, he, she, it, we, they	will orbit
Future perfect	I, you, he, she, it, we, they	will have orbited

Continuous Form
Present	I	am orbiting
	he, she, it	is orbiting
	you, we, they	are orbiting
Past	I, he, she, it	was orbiting
	you, we, they	were orbiting
Present perfect	I, you, we, they	have been orbiting
	he, she, it	has been orbiting
Past perfect	I, you, he, she, it, we, they	had been orbiting
Future	I, you, he, she, it, we, they	will be orbiting
Future perfect	I, you, he, she, it, we, they	will have been orbiting

EXAMPLES FROM OTHER DICTIONARIES

The satellite will orbit the Earth for the next 15 years.
The team confirmed the discovery of a planet orbiting the star 51 Pegasi.
Venus orbits the sun once every 225 Earth days.

EXAMPLES FROM THE CORPUS

Another insight has arisen out of studies of the logistics of deep-space missions that must return to orbit about Earth.
It orbits closer to the fires of the Sun than any other planet, well inside the orbit of Venus.
Now, thought Floyd, we are on our own, more than half-way to orbit.
On some planets orbiting these stellar furnaces skies beget clouds, oceans fill with water and, sometimes, life begins.
Some years later Newton, using his newly discovered law of gravity, proved that all objects must orbit in elliptical paths.
The Cassini mission currently under preparation is intended to orbit Saturn.
The moons of Jupiter can be seen to orbit Jupiter and not the earth.
Women orbited about surfers on the beach; they clung to them in cars; they occupied their houses in loose liaisons.

Longman Language Activatormoving in a circle or moving around something► around

also round British use this after verbs of movement, to show that someone or something is moving in a circle or moving around something: go/fly/travel/run etc around: · The Earth goes around the Sun.· The helicopter flew round and round above us.

► in circles

if someone or something moves in circles , they move around in a circle several times: · Birds flew in circles above the lake.· As the dog got more and more excited, it started running around in circles.

► circle

especially written to move around someone or something in a circle: · The plane circled the airport several times before landing.circle around/above: · As we walked along the beach, I could see seagulls circling above the cliffs.

► orbit

to go around the Earth, the Moon, the Sun etc in a continuous circular movement: · The satellite will orbit the Earth for the next 15 years.· The team confirmed the discovery of a planet orbiting the star 51 Pegasi.

WORD SETS► Astronomy

asteroid, nounastro-, prefixastronaut, nounastronomical, adjectiveastronomy, nounastrophysics, nounAU, aurora borealis, nounBig Bang, the, nounblack hole, nouncelestial, adjectivecomet, nounconstellation, nouncorona, nouncosmic, adjectivecosmic ray, nouncosmology, nouncosmonaut, noundead, adjectiveearth, nouneclipse, nouneclipse, verbecliptic, nounequinox, nounescape velocity, nounextraterrestrial, adjectivegalactic, adjectivegalaxy, noungeostationary orbit, nounHubble Space Telescope, the, infinity, nounintergalactic, adjectiveinterplanetary, adjectiveinterstellar, adjectiveJupiter, nounlaunch, verblaunch, nounlight year, nounLittle Bear, lunar, adjectivelunar month, nounmagnitude, nounMars, nounMercury, nounmeteor, nounmeteoric, adjectivemeteorite, nounMilky Way, the, month, nounmoon, nounmorning star, nounNASA, nounnebula, nounNeptune, nounnew moon, nounnova, nounobservatory, nounorbit, verborbit, nounorbiter, nounouter space, nounphase, nounplanet, nounplanetarium, nounplasma, nounPluto, nounquadrant, nounquarter, nounquasar, nounradio telescope, nounring, nounrocket, nounsatellite, nounSaturn, nounsea, nounshooting star, nounsolar, adjectivesolar system, nounspace, nounspace capsule, nounspacecraft, nounspace probe, nounspaceship, nounspace shuttle, nounspace station, nounstar, nounstargazer, nounsteady state theory, nounstellar, adjectivesun, nounsunspot, nounsupernova, nountelescope, nountelescopic, adjectiveterrestrial, adjectiveUranus, nounVenus, nounwane, verbwax, verbwhite dwarf, nounworld, nounzenith, noun

COLLOCATIONS FROM OTHER ENTRIES► the Earth’s orbit

· The rocket left the Earth's orbit and set off to Mars.

► orbit earth

· The Earth orbits the Sun once a year, and the Moon orbits the Earth approximately every 27 days.

COLLOCATIONS FROM THE CORPUSADVERB► around

· According to the theory, negatively charged electrons within atoms orbit around positively charged nuclei.· Astronomers have observed many systems in which two stars orbit around each other, attracted toward each other by gravity.· They also observe systems in which there is only one visible star that is orbiting around some unseen companion.· As the Moon orbits around the Earth it exerts its gravitational pull as illustrated: 1.

NOUN► earth

· Although the exchanged particles are virtual, they certainly do produce a measurable effect-they make the earth orbit the sun!· Copernicus did not even try to convince people that the Earth really orbited the Sun.

► electron

· According to the theory, negatively charged electrons within atoms orbit around positively charged nuclei.· Top: Model of a two dimensional electron wave orbiting a nucleus of hydrogen.

► moon

· As the Moon orbits around the Earth it exerts its gravitational pull as illustrated: 1.

► planet

· Preliminary evidence suggested that a second planet was also orbiting the star further out.· They regard such wobbles as responses to the gravitational tugs of planets orbiting around them.· On some planets orbiting these stellar furnaces skies beget clouds, oceans fill with water and, sometimes, life begins.· Certainly, evidence of intelligent civilizations on planets orbiting distant stars would be an epochal event in human history.· Johannes Kepler was the first person to realize that the planets orbit the Sun in just such paths.· The planet Mercury orbits the Sun more closely than do any of the others.· Electrons you could see as tiny planets orbiting round an even tinier sun.

► s

· Surprisingly, it follows a Lagrange point on Mars' s orbit.

► satellite

· You share it with dolphins and whales and albatrosses and the lonely satellite orbiting overhead.· Within a very few years, there should be commercial satellites in orbit capable of image resolutions down to less than 4m.

► sun

· Although the exchanged particles are virtual, they certainly do produce a measurable effect-they make the earth orbit the sun!· Billions of asteroids orbit the sun in a belt between the orbits of Mars and Jupiter.· Johannes Kepler was the first person to realize that the planets orbit the Sun in just such paths.· The planet Mercury orbits the Sun more closely than do any of the others.· Copernicus did not even try to convince people that the Earth really orbited the Sun.

to travel in a curved path around a much larger object such as the Earth, the Sun etc:

The satellite orbits the Earth every 48 hours.

orbit¹ verborbit² noun

orbitorbit2 noun [countable]

WORD ORIGINorbit2

Origin:

1500-1600 Latin orbita ‘wheel-track’, probably from orbis; ➔ ORB

EXAMPLES FROM OTHER DICTIONARIES

Diplomats want to draw the two republics into the West European orbit.
the Moon's orbit around the Earth

EXAMPLES FROM THE CORPUS

A spacecraft passing through its perigee point is moving faster than an equivalent craft on a circular orbit of the same radius.
By the time that the third stages engine had shut down the Apollo astronauts were in orbit.
From the observed orbit of the visible star, one can determine the lowest possible mass of the unseen object.
Mariner 9, with its vastly superior vantage point in orbit around Mars, saw it all.
Once in orbit, you are precisely half way to having enough energy to escape from Earth.
That proposal should send federal unions into orbit.
The orbit of the Leonid shower has been determined from both photographic and radar observations.
This final property is useful because it simplifies the calculation of general relativistic orbits.

WORD SETS► Astronomy

COLLOCATIONS FROM OTHER ENTRIES► the Earth’s orbit

· The rocket left the Earth's orbit and set off to Mars.

► orbit earth

· The Earth orbits the Sun once a year, and the Moon orbits the Earth approximately every 27 days.

COLLOCATIONS FROM THE CORPUSADJECTIVE► circular

· Similarly, radial burns can be used to convert circular orbits into elliptical ones.· Both satellites pursue nearly circular, equatorial orbits about Mars.· Subsequent timing observations have shown the pulsar to be in a 5.74-day circular orbit with a low-mass companion.· A spacecraft passing through its perigee point is moving faster than an equivalent craft on a circular orbit of the same radius.· Consequently the force of gravity at perigee is not enough to hold it in a circular orbit.· This changes them from a circular orbit to an elliptical one.· Another burn at this point can accelerate the craft, placing it on the higher circular orbit.· An arrangement of more than four similar events into a circular orbit emphasises the centre, which may be occupied or not.

► eccentric

· In summary the binary consists of two compact stars of not dissimilar mass moving in tight eccentric orbits.· These asteroids may then be disturbed by gravitational perturbations by Jupiter into eccentric orbits, and then evolve into Earth-crossing orbits.· The greater the distance between the foci the more eccentric the orbit and the greater the difference between apogee and perigee.· The spacecraft enters into a more eccentric orbit, however the height and position of perigee remains the same.

► elliptical

· Radial burns can also be used to circularize an elliptical orbit.· In this cumbersome manner the elliptical orbits of the planets could all be defined within the context of the perfect circle.· Kepler published his discovery of the elliptical orbits of planets in 1609.· For example, consider a spacecraft flying in an elliptical orbit and burning its engines at the moment it reaches perigee.

► geostationary

· This is known as a geostationary orbit and it is the orbit of choice for communications satellites.· These satellites are in geostationary orbit and the images that they provide are used primarily in weather forecasting applications.· As I mentioned earlier, a geostationary orbit is very handy for communications satellites.

► high

· Figure 4.15 A Hohmann transfer between a low orbit and a higher orbit.· Sometimes manmade objects in high orbits about Earth are also seen and identified from their distinctive motion.· Another burn at this point can accelerate the craft, placing it on the higher circular orbit.· The shuttle also will nudge the observatory into a slightly higher orbit to extend its lifetime.· After all, the high orbit will require a lower speed for stability than the low orbit!· One month later a second satellite was launched into a somewhat higher orbit, of between 234 and 244 miles.· A suitable satellite in high orbit should do it nicely.· For Deimos, in its higher orbit, only 560 meters per second suffices to escape from the Mars system.

► low

· The unit includes the proposed Iridium global communications system that will use 66 low earth orbit satellites.· But Ranger 1 got stuck in low orbit around Earth, as did Ranger 2 three months later.· Figure 4.15 A Hohmann transfer between a low orbit and a higher orbit.· Satellites in low-earth orbit glimpse only fragments of the planet.· The station was orbiting at 280 kilometres altitude, its lowest orbit since the year of its launch in 1986.· First, the crew, lunar-base modules, and equipment must be launched into a low orbit about Earth.· After all, the high orbit will require a lower speed for stability than the low orbit!· The cost of launching that ounce of gold into low-Earth orbit by shuttle would be about $ 830.

► periodic

· For r slightly greater than 21. 0, a periodic orbit was not detected in the numerical results.

► planetary

· Just because the law makes definite claims about planetary orbits, it has informative content and is falsifiable.· An Apollo may make as many as ten crossings of planetary orbits on each trip around the Sun.· These shapes turned out, quite remarkably, to be just what were needed for the descriptions of planetary orbits!· He eventually discovered, however, that the planetary orbits are, in fact, elliptical.

► stable

· Figure 4.6 How the linear speed needed for a stable orbit decreases with distance from the centre of the Earth.· The bombardment occurs because of the stable orbits of the planets.

NOUN► earth

· We do it now on a small scale to bring the rocks into Earth orbit from the asteroid belt.· Satellites in low-earth orbit glimpse only fragments of the planet.· The unit includes the proposed Iridium global communications system that will use 66 low earth orbit satellites.· Another day and a half of zero gravity after takeoff and your ship brakes to enter Earth orbit.· There is a long history of stations in Earth orbit that have met with varying degrees of success.· After one to two years in Earth orbit, it will sail off into space.· However the shuttle is purpose-built to lift payloads into Earth orbit in a reusable manner.· The third stage's initial burn to place Apollo in Earth orbit lasted for 165 seconds.

VERB► cross

· In 1873, however, one was found on a trajectory that brought it in to cross the orbit of Mars.· Therefore, Eros in its present orbit can cross the orbit of Mars and pass distressingly close to Earth.· This was not a new idea, because comets had been known to have planet-crossing orbits for some time.· All of the Amor asteroids cross the orbit of Mars and could collide with it.· Almost 1,000 small asteroids crossing our orbit are now known, 300 of them found last year alone.· It has also found two Centaur family asteroids in orbits that cross the orbits of several of the Jovian planets.· These bodies pass through the heavily trafficked inner solar system; many cross the orbits of three or four different planets.

► enter

· Not easy though, he wrote, to submit oneself to it, to enter its orbit.· They then enter independent orbits around the Sun, eventually to become meteorites.· Another day and a half of zero gravity after takeoff and your ship brakes to enter Earth orbit.· Both entered orbit but quickly malfunctioned.· Discovery would enter a parking orbit around Saturn, be-coming a new moon of the giant planet.

► follow

· Hence, as we follow the orbit around, we oscillate between one point and the other.· The comet Tempel-Tuttle follows an orbit that is strikingly similar to that of the Leonids.

► launch

· First, the crew, lunar-base modules, and equipment must be launched into a low orbit about Earth.

► move

· In summary the binary consists of two compact stars of not dissimilar mass moving in tight eccentric orbits.· I fantasized that by moving out of the orbit of Toots Tutivena and her Entourage, I would no longer be persecuted.

► place

· On 4 October 1957 the Soviets placed Sputnik in orbit.· Further, no instruments capable of detecting ice deposits were placed in polar orbit about the Moon during the Apollo era.· The third stage's initial burn to place Apollo in Earth orbit lasted for 165 seconds.· In February of 1961 two more spacecraft of this type were placed in closely similar orbits.· The third stage was lit again to place Apollo on to an orbit that would carry it out to the Moon.

► put

· Supplies could be put in orbit and brought down as needed by a braking system.· Nor did one put shrapnel into orbit around the base.

1the curved path travelled by an object which is moving around another much larger object such as the Earth, the Sun etcorbit around

the Moon’s orbit around the Earthin/into orbit

The space shuttle is now in orbit.

The telecommunications satellite went into orbit at the end of last year.2 formal the area of power and influence of a person, an organization etcwithin the orbit of something

countries within the orbit of the British Commonwealth

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