service是什么意思中文翻译 emission是什么意思 emission的中文释义

emission是什么意思 emission的中文释义  

英音 [i'miʃn] ;,美音 [i'miʃən] ;,名词
1.不可数名词：【文】（光、热、烟、气、分泌物、体液等的）散发，发射，发出
2.可数名词：散发之物、发出之物；流出物；排泄物,the act of emitting; causing to flow forth,any of several bodily processes by which substances go out of the body,the release of electrons from parent atoms,a substance that is emitted or released,the occurrence of a flow of water (as from a pipe),positron emission emission puter 正电子发射计算机,cold emission 自动发射，场致发射，冷发射，冷辐射，冷阴极放射,emission band 发射带,emission behavior 排放性能,emission cell 发射光电管，发射式光电元件,emission duration 发射持续时间,emission formation 排气污染物的形成,emission frequency 发射频率,emission level 排放水平，排气污染程度,emission line 发射谱线,emission n.1.[U]【文】（光、热、烟、气、分泌物、体液等的）散发，发射，发出2.[C]散发之物、发出之物；流出物；排泄物,field emission 【化】 场致发射,low emission 低污染的汽车／发动机)低排放(的,back emission 反向放射,fluorescence emission 荧光发射,re emission 二次发射,二次辐射