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 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 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。
• 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。
• The fluorine emission characteristics and industrial experiment results of fluorine retention during coal combustion in fluidized bed were reported.
  分析了流化床煤燃烧氟析出特性，并进行了流化床石灰石燃烧固氟试验。
• 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。
• 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。
• Waste ( methane emission) management and construction of energy efficient housing;
  废料（甲烷排放）管理和节能房屋的建设；
• 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。
• A wet dream is also known as a nocturnal emission.
  湿梦也被认为是夜间遗精。
• 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。