emission中文什么意思

n.
1.(光、热、气体等的)发出，发射，射出，放射；传播。
2.(纸币等的)发行；发行额。
3.发出物，放射物。
+更多解释...4.【医学】排出；遗精。

• emission emission:    发射喷射
• positron emission emission computer:    正电子发射计算机
• acoustic emission:    声发射技术; 声发射检验; 声频发射 ...

例句与用法

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1. An example is the emission of light from matter .
   物质的发光即为一例。
2. There was an audible emission of breath from the duke .
   这时听到公爵叹了一口气。
3. Beta emission consists of electrons .
   射线由电子组成。
4. The distinct processes are involved in x-ray emission .
   X射线的发射，包含不同的过程。
5. A lumen is a measure of the rate of emission of light energy .
   流明是光能放射率的量度单位。

英文释义

名词

1. the act of emitting; causing to flow forth
   同义词：emanation
2. the occurrence of a flow of water (as from a pipe)
3. any of several bodily processes by which substances go out of the body; "the discharge of pus"
   同义词：discharge, expelling
4. the release of electrons from parent atoms
5. a substance that is emitted or released
   同义词：discharge