emit

英 [iˈmɪt] 美 [iˈmɪt]

v.  发出,射出,散发(光、热、声音、气等)

过去式:emitted现在分词:emitting第三人称单数:emits过去分词:emitted复数:emits

CET4CET6考研TOEFLIELTSGRETEM4TEM8化学

Collins.1 / BNC.7914 / COCA.6273



牛津词典

verb

  1. 发出,射出,散发(光、热、声音、气等)
    to send out sth such as light, heat, sound, gas, etc.
    1. The metal container began to emit a clicking sound.
      金属容器开始发出咔嗒咔嗒的声音。
    2. Sulphur gases were emitted by the volcano.
      硫磺气体由火山喷发出来。

柯林斯词典

  1. VERB 发出,排放,散发(热、光、气或气味)
    If something emits heat, light, gas, or a smell, it produces it and sends it out by means of a physical or chemical process.
    1. The new device emits a powerful circular column of light.
      新设备发出明亮的圆形光柱。
    2. ...the amount of carbon dioxide emitted.
      二氧化碳排放量
  2. VERB 发出(声音或噪音)
    To emit a sound or noise means to produce it.
    1. Polly blinked and emitted a long, low whistle.
      波莉眨了眨眼,吹了一声低沉而悠长的口哨。

双语例句

  1. The new device emits a powerful circular column of light.
    新设备发出明亮的圆形光柱。
  2. Polly blinked and emitted a long, low whistle.
    波莉眨了眨眼,吹了一声低沉而悠长的口哨。
  3. It is unlawful for factories to emit black smoke into the air.
    现在,工厂往空气中排黑烟是违法的。
  4. A fixed star can emit light and heat by itself.
    恒星本身发光发热。
  5. For example, an invoke activity can emit entry and/ or exit events.
    例如,调用活动可以发出进入和/或退出事件。
  6. Executing processes in the ESB emit events that can be correlated to business activities in the WBI Monitor.
    在ESB中执行流程会发出与WBIMonitor中业务活动相关联的事件。
  7. The GNU tools can also emit STABs in the COFF and ECOFF object file formats.
    GNU工具也可以在COFF和ECOFF对象文件格式中生成STAB。
  8. Your relationship will improve when you emit confidence and positive energy.
    当你散发出自信和正能量时你们的关系才会好转。
  9. Those activities include the burning of fossil fuels in factories, buildings and cars which emit heat-trapping gases.
    这些人类活动包括工厂,建筑物和汽车里燃烧化石燃料排放的吸热气体。
  10. They emit strong red fluorescence both in solution and in solid state under UV light.
    这些化合物在紫外光的激发下,固态和溶液都能产生强烈的红色荧光。
  11. Form produce, or emit bubbles, as of liquids or gases.
    指液体或气体形成或发出气泡。
  12. Burning or glowing. Fireflies emit light but not heat.
    燃烧的,发白热光的萤火虫发光但不放出热。
  13. Buses emit more carbon than trains, but that can be minimized by using hybrid or compressed-natural-gas engines.
    公车比火车排放的碳更多,但通过使用混合燃料车或压缩天然气引擎可以减少至最低。
  14. Reflection bowl collects emitted light from the lamp and emit it out;
    反光碗在应用是将灯具出射的光收集并向前射出;
  15. Choose energy-saving lamps that convert more consumed energy into usable light and emit less heat.
    选择节能灯的光转换成可用的能源消耗和排放更少的热量。
  16. They say that jungles and rain forests emit greenhouse gases which create global warming.
    他们认为从林地带和雨林排放温室气体导致全球变暖。
  17. Fireflies emit light but not heat.
    萤火虫发光但不放出热。
  18. Dark matters do not emit, absorb or reflect light ray of any wavelength.
    暗物质不发射、吸收或者反射任何波长的光线。
  19. These two photons in turn could stimulate two other atoms to emit photons, yielding four photons.
    这两个光子接著会激发另两个原子放出光子而产生四个光子。
  20. High-mass stars emit ultraviolet and blue light, whereas low-mass stars emit yellow and red light.
    大质量恒星发出紫外光和蓝光,而小质量恒星则发出黄光与红光。
  21. In this example, we only provide simple editing facilities, so we need never emit this signal.
    在这个例子中,我们只提供简单的编辑功能,所以我们不需要发出这个信号。
  22. Of even more significance, fuel cells emit only water and heat as byproducts.
    更大的不同点是,燃料电池排放的副产品只有水和热。
  23. The polymers can also emit strong fluorescence with the excitation of ultraviolet ( UV) or visible light.
    在紫外或可见光的激发下,也能发射出较强的荧光。
  24. Laser printers may emit high levels of potentially hazardous particles, according to a new study.
    根据最新研究报告,激光打印机可能发射出高标准潜在的有害粒子。
  25. Oh, I get it! Microwave ovens emit very-high-frequency radio waves which penetrate the food instantly.
    喔,我懂了!微波炉会发出很高频率的无线电波,立即穿透食物。
  26. The greenhouse gas that we emit have reached its peak at this time.
    此时此刻,我们制造的温室气体已经到达了顶峰。
  27. Most metallic and some nonmetallic elements will emit characteristic radiations.
    大多数金属和某些非金属元素都会发出特征的射线。
  28. Whatever product you use should emit only visible light, because ultraviolet light damages the eyes.
    你所用的任何产品都应该只发射可见光,因为紫外辐射会伤眼睛。
  29. Atoms emit and absorb light of specific wavelengths, as measured in laboratory experiments.
    就如同在实验室中所测量到的,原子会放出或吸收特定波长的光。
  30. Emit ( as light, flame, or fumes) suddenly and forcefully.
    突然而强烈的发出灯光火焰或者烟。

同义词辨析

  radiate emit give off send out【导航词义:散发】

  radiate v. 散发,发射

〔辨析〕指向四周发射光或热,作不及物动词时常后接介词 from。

〔例证〕
The campfire radiated a warm cozy glow.
篝火发出温暖舒适的光。
Heat radiated from the glowing wood.
燃烧的木头散发出热量。

  emit v. 〈正式〉发出,散发

〔辨析〕指发出光、热、气、声音等。

〔例证〕
The candle on the table emitted dim light.
桌子上的蜡烛发出微弱的光。
Fireflies don't emit heat.
萤火虫不散发热。

  give off phr. v. 发出

〔辨析〕指发出光、热、声音、气味等。

〔例证〕
The sun gives off light and heat.
太阳发出光和热。
This particular rose gives off an incredible fragrance.
这种特殊的玫瑰散发出浓烈的香味。

  send out phr. v. 发出

〔辨析〕指发出光、声音、信号等。

〔例证〕
The sun sends out light all the time.
太阳一直发光。
When did that ship send out an SOS signal?
那艘船何时发出呼救信号的?

英英释义

verb

  1. expel (gases or odors)

      Synonym:    breathepass off

    1. express audibly
      1. She let out a big heavy sigh
      2. He uttered strange sounds that nobody could understand

      Synonym:    utterlet outlet loose

    2. give off, send forth, or discharge
      1. The ozone layer blocks some harmful rays which the sun emits

      Synonym:    give outgive off