| 单词 | emit |
| 释义 | emit (ɪmɪt ) Word forms: emits , emitting , emitted 1. verb If something emits heat, light, gas, or a smell, it produces it and sends it out by means of a physical or chemical process. [formal] The new device emits a powerful circular column of light. [VERB noun] ...the amount of carbon dioxide emitted. [VERB noun] 2. verb To emit a sound or noise means to produce it. [formal] Polly blinked and emitted a long, low whistle. [VERB noun] Synonyms: utter, produce, voice, give out Collocations: emit a chemical In tests on mice, a set of nerve cells called pro-opiomelanocortin neurons abandoned their normal function and emitted chemicals that made the animals hungrier. Times, Sunday Times They emit chemicals that resemble the pheromones of moths, and then swing the bolas at the moths. Retrieved from Wikipedia CC BY-SA 3.0 It has been found that encrusting sponges emit chemicals that discourage barnacle larvae from settling nearby. Retrieved from Wikipedia CC BY-SA 3.0 The plant emits a chemical or chemicals into the soil that reduce the effectiveness of further alfalfa seedings. Retrieved from Wikipedia CC BY-SA 3.0 Towed on cables by two ships - soon to be three - on a precise grid pattern over a 23,000 square mile area, the devices emit a pulse to the seabed. Times, Sunday Times The instrument uses fourteen polyvinylidene fluoride detectors, which emit a pulse of charge when impacted by a hypervelocity dust particle (velocity). Retrieved from Wikipedia CC BY-SA 3.0 Active sonar emits a pulse of sound that bounces back when it meets an object, revealing the location of vessels. Times, Sunday Times Simple comparing circuits had two entries and one exit that emitted a pulse whenever pulses arrived at the entries at different times. Retrieved from Wikipedia CC BY-SA 3.0 They aim to spot the molecules thought to emit the scent. The Sun Ewes have estrus cycles about every 17 days, during which they emit a scent and indicate readiness through physical displays towards rams. Retrieved from Wikipedia CC BY-SA 3.0 During breeding season the female boa will emit a scent from her cloaca to attract males, who may then wrestle for the right to breed with her. Retrieved from Wikipedia CC BY-SA 3.0 To attract females, the male emits a scent rather similar to pineapple. Retrieved from Wikipedia CC BY-SA 3.0 To pollinate, the flowers attract flies by emitting a scent similar to that of carrion. Retrieved from Wikipedia CC BY-SA 3.0 The windings in the transponder chip absorb that energy and power the electronic chip to emit a signal. Retrieved from Wikipedia CC BY-SA 3.0 Each pill has a metal sensor that emits a signal when it gets wet in the stomach. The Sun The jamming device emits a signal that would prevent the black box from communicating with the satellite. Times, Sunday Times Both of these refer to networks connecting oscillators, where oscillators are nodes that emit a signal with somewhat regular (possibly variable) frequency, and are also capable of receiving a signal. Retrieved from Wikipedia CC BY-SA 3.0 It emits a signal covering a sector 30 degrees in azimuth and 30 degrees in elevation, with the scanning controlled by frequency. Retrieved from Wikipedia CC BY-SA 3.0 To speak to others of their species along with the voice they emit a smell showing their emotions. Retrieved from Wikipedia CC BY-SA 3.0 It emits a smell of rotting meat to attract insect pollinators, hence the name. Retrieved from Wikipedia CC BY-SA 3.0 Water and direct sunlight are used to activate the attractant, which emits a smell to lure the flies. Retrieved from Wikipedia CC BY-SA 3.0 The streamers contain the microphones that emit the sound. Globe and Mail These stacks will emit a sound like a bell when struck. Retrieved from Wikipedia CC BY-SA 3.0 Instead, she invests in this gadget, which emits a sound that repels rodents. Times, Sunday Times Alternatively, use an ultrasonic deterrent, which detects the cat and emits a sound to frighten it away. The Sun She squirmed in her seat, emitting a sound somewhere between a whimper and a growl. Times, Sunday Times The emissivity describes the ability of an object to emit energy by radiation. Retrieved from Wikipedia CC BY-SA 3.0 She can also levitate and emit energy streams. Retrieved from Wikipedia CC BY-SA 3.0 He can emit energy beams from his spear. Retrieved from Wikipedia CC BY-SA 3.0 Finally, all the combustion processes emit energy that enhance vertical upward movements. Retrieved from Wikipedia CC BY-SA 3.0 When these excited electrons fall back to their original energy levels, they emit energy as light. Retrieved from Wikipedia CC BY-SA 3.0 As the oceans warm, they emit gases. Times, Sunday Times The researchers measured the pressure of the emitted gas and converted this into volume. The Scientist It was still emitting gas. Times, Sunday Times It contains hundreds of reddish galaxys surrounded by x-ray emitting gas. Retrieved from Wikipedia CC BY-SA 3.0 The flames heat the material farther up: these emit gases that self-ignite, demonstrating flashover theory. Retrieved from Wikipedia CC BY-SA 3.0 Millimetre-wave energy detectors can pick up concealed dense objects because these emit heat energy at a different rate from the human body. Times, Sunday Times All electrical appliances emit heat even on standby. The Sun The coal embers would emit heat providing some relief in a time when automobiles did not have such options. Retrieved from Wikipedia CC BY-SA 3.0 All thermal power plants emit heat during electricity generation, which can be released into the natural environment through cooling towers, flue gas, or by other means. Retrieved from Wikipedia CC BY-SA 3.0 Huddled on a rocky ledge below a large patch of burnt moutainside, which was still emitting heat, the village's sheep were worst affected by the onslaught. Times, Sunday Times This optimization, combined with each fluorophore's ability to absorb and emit light at distinct wavelengths, enables researchers to carry out multiplex assays. The Scientist We are surrounded by beacons of nuclear fusion which emit light that can travel uninterrupted in the vacuum of space for millions of years. The Times Literary Supplement However, if the molecule rotates or tumbles during this period, it will emit light in different directions as it moves about, and the light will be depolarized. The Scientist By genetically modifying the plants with the protein luciferase to emit light along with the gas, the researchers were able to film the plants 'talking' to each other. Times, Sunday Times Some deep-sea anglerfishes of the bathypelagic zone emit light from their escas to attract prey. Retrieved from Wikipedia CC BY-SA 3.0 Even in a landfill, this nappy will break down faster than a conventional one, although it will still emit methane, a significant greenhouse gas. Times, Sunday Times The bricks will be manufactured using wood-chip waste, which would otherwise rot and emit methane gas into the atmosphere. Times, Sunday Times Hope they don't emit methane. Times, Sunday Times Improperly operated flares may emit methane and other volatile organic compounds as well as sulfur dioxide and other sulfur compounds, which are known to exacerbate asthma and other respiratory problems. Retrieved from Wikipedia CC BY-SA 3.0 In addition, as it rots it emits methane, 'a greenhouse gas that's more than 20 times more potent than carbon dioxide'. Times, Sunday Times The process involves the excitement of electrons (a negative subatomic charge), which emit photons (light particles), that stimulate other excited electrons to do the same. Times, Sunday Times They would then emit photons at wavelengths around a millionth that of microwaves. Times, Sunday Times The electrons that surround the atom can absorb and emit photons, he explains, and the electrons consequently jump around, altering the atom's conformation. Times, Sunday Times The primary phosphor will emit photons following absorption of the transferred energy. Retrieved from Wikipedia CC BY-SA 3.0 As these excited atoms decay to lower states, they will emit photons, which can then be detected and a spectrum can be determined. Retrieved from Wikipedia CC BY-SA 3.0 But experts told a court in Italy last week that radiation emitted by mobile and cordless phones can damage cells, making tumours more likely. The Sun (2012) They said electromagnetic radiation emitted by mobile and cordless phones can damage cells, making tumours more likely. The Sun (2012) Its manufacturers said that the radiation emitted by the machine mean it could not yet be used while passengers were sitting in the aircraft. Times, Sunday Times (2015) Jet turbines emit smoke if they undergo a compressor stall. Times, Sunday Times In such zones, you can't emit smoke from a chimney unless you're burning an authorised fuel or using exempt appliances. Times, Sunday Times The volcano continued to emit smoke, with plumes reaching a kilometre (3,280 feet, or six-tenths of a mile) into the atmosphere. Retrieved from Wikipedia CC BY-SA 3.0 Towards the end three of the dancers' jackets mysteriously start emitting smoke - an ambiguous metaphor, perhaps, for stamped-down passions. Times,Sunday Times Then the main unit suddenly emitted smoke. Times, Sunday Times A gas plant emits one-third of the carbon dioxide of an equivalent coal plant. Globe and Mail The plant emits a chemical or chemicals into the soil that reduce the effectiveness of further alfalfa seedings. Retrieved from Wikipedia CC BY-SA 3.0 The whole plant emits a strong smell: bitter, resinous or medicinal. Retrieved from Wikipedia CC BY-SA 3.0 The plant emits almost zero sulfur and mercury. Retrieved from Wikipedia CC BY-SA 3.0 The whole plant emits a disagreeable odour. Retrieved from Wikipedia CC BY-SA 3.0 The explosion released more energy in half a second than the sun emits over 10 billion years, according to another press release. Retrieved from Wikipedia CC BY-SA 3.0 The planet's sun emits x-tonic radiation, which vaporises organic matter and can only be viewed safely through sufficiently thick finito glass. Retrieved from Wikipedia CC BY-SA 3.0 The sun emits electromagnetic radiation in the form of ultraviolet, but changes to infrared when it passes through glass. Retrieved from Wikipedia CC BY-SA 3.0 To describe the motion of the planets, he claims the sun emits a physical species, analogous to the light it also emits, which pushes the planets along. Retrieved from Wikipedia CC BY-SA 3.0 Translations: Chinese: 发出 Japanese: 放つ |
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