emission
n. 发出; 排放(物)
An emission of something such as gas or radiation is the release of it into the atmosphere.
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。
Sulfur emissions from steel mills become acid rain.
炼钢厂排放出的硫形成了酸雨。
1. the act of emitting; causing to flow forth
2. a substance that is emitted or released
3. the release of electrons from parent atoms
4. any of several bodily processes by which substances go out of the body;
5. the occurrence of a flow of water (as from a pipe)
More and more people attach importance to reducing greenhouse gas emission.
越来越多的人开始重视减少温室气体排放.
Fig 3 Excitation and emission spectra of indoles and its derivative in DMSO.
图3吲哚及其衍生物的DMSO溶液的激发和发射光谱.
Total air pollutant emission control planning is a major urban environmental management approach.
大气污染物总量控制是控制城市大气环境污染主要管理手段.
Norway and Japan were the only industrialized countries to win applause for pledging further emission reductions.
挪威和日本是承诺进一步减少排放而博得称赞的唯一工业化国家.
A high beam energy is also used to stimulate x - ray emission of higher - energy peaks .
高能量电子束也能用来激发 高能量 X 射线峰的发射.