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

• Application of Acoustic Emission in Earthquake Monitoring System
  声发射在地震监测系统中的应用研究
• 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。
• Formaldehyde emission testing on wood panel and finished goods;
  木板和成品的甲醛释放测试；
• 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 theoretical and calculating models of field emission properties of metal cone and wedge are established.
  建立了金属圆锥和楔形场发射体性能的理论计算模型。
• 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。
• 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。
• The influence of the material types on the dynamic friction was studied by the technique of acoustic emission.
  利用声发射技术研究了材料类别对动态摩擦状态的影响。
• The availability of new passenger cars each year depends on whether car makers successfully complete an emission certification process.
  每年新车是否可用，取决于汽车制造者是否成功地完成排放物鉴定程序。
• 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。