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

• Evaluation of uncertainty for measurement of carbon in titanium alloy by spark source atomic emission spectrometry;
  对火焰原子发射光谱法测定碳化钛中微量钠的条件进行了试验。
• 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。
• Application of Acoustic Emission in Earthquake Monitoring System
  声发射在地震监测系统中的应用研究
• In cathode ray tube display, the continuation of light emission from phosphor after excitation by the electron beam.
  在阴极射线管显示器中，用电子束激励后荧光物质光发射的持续现象。
• The materials 'best form were conformed by the studies of excitation and emission spectra.
  通过材料的激发和发射光谱研究，确定了材料的最佳组成。
• Formaldehyde emission testing on wood panel and finished goods;
  木板和成品的甲醛释放测试；
• Sulfur emissions from steel mills become acid rain.
  炼钢厂排放出的硫形成了酸雨。
• Who conducted the experiment of hydrogen emission spectrum in a magnetic field.
  塞曼做了一个，磁场中的氢原子光谱实验。
• 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 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。