emission

英 [iˈmɪʃn]

美 [iˈmɪʃn]

n.  (光、热、气等的)发出，射出，排放; 排放物; 散发物

复数：emissions　

CET6TOEFLIELTSTEM8医学

Collins.2 / BNC.3483 / COCA.2915

牛津词典

noun

• （光、热、气等的）发出，射出，排放
  the production or sending out of light, heat, gas, etc.
  1. the emission of carbon dioxide into the atmosphere
     向大气排放二氧化碳
  2. emission controls
     排放控制
• 排放物；散发物
  gas, etc. that is sent out into the air
  1. The government has pledged to clean up industrial emissions.
     政府已保证要清除工业排放物。

柯林斯词典

• N-VAR 散发;释放;放射
  Anemission ofsomething such as gas or radiation is the release of it into the atmosphere.
  1. The emission of gases such as carbon dioxide should be stabilised at their present level...
     二氧化碳等气体的排放应该稳定在当前水平。
  2. Sulfur emissions from steel mills become acid rain.
     炼钢厂排放出的硫形成了酸雨。

英英释义

noun

• the act of emitting
  Synonym:emanation
• the occurrence of a flow of water (as from a pipe)
• any of several bodily processes by which substances go out of the body
  1. the discharge of pus
  Synonym:dischargeexpelling
• the release of electrons from parent atoms
• a substance that is emitted or released
  Synonym:discharge

双语例句

• In-situ field electron emission measurement has been conducted on individual zinc oxide nanowire.
  原位研究了单根氧化锌纳米线的场致电子发射性能。
• Moreover, did simple quantitive analysis on the indirect CO2 emission in outer power production and buy clinker production.
  同时从外部电力生产和购买熟料生产的两个方面，对水泥生产间接二氧化碳排放也进行简单定量分析。
• This is the mathematical basis of computed tomography and positron emission tomography.
  这是计算机层析成像和正电子层析成像的数学基础。
• Based on the advantages and shortages of EMD, it is the first time to use this method to Acoustic Emission Testing.
  在分析了EMD方法的优点和不足的基础上，首次提出将该方法应用于声发射检测中。
• This emission of heat is completely independent of temperature and pressure.
  这热的散发全然不受温度和压力的影响。
• The output of Amplifier has a filter, which can inhibit the out-off-band harmonic waves and unwanted emission component.
  放大器的输出接有滤波器，可有效抑制带外谐波和无用发射分量。
• The point of airport environmental regulation is the pollution of noise and emission.
  摘要机场环境管制的重点是噪声和排放物污染。
• Formaldehyde emission testing on wood panel and finished goods;
  木板和成品的甲醛释放测试；
• The effects of external cavity feedback on the threshold gain and emission linewidth are discussed theoretically;
  理论上分析了外腔的引入对激光器的阈值增益和光谱线宽的影响；
• Its fluorescent emission spectra were measured and the main transition channel were recognized clearly.
  测量了它的荧光发射谱，搞清了它的主要跃迁通道。