early 15c., "something sent forth," from Middle French émission (14c.) and directly from Latin emissionem (nominative emissio) "a sending out, a projecting, hurling, letting go, releasing," noun of action from past participle stem of emittere "send out" (see emit). Meaning "a giving off or emitting" is from 1610s.
双语例句
1. the emission of carbon dioxide into the atmosphere
向大气排放二氧化碳
来自《权威词典》
2. 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。
来自柯林斯例句
3. States have the option of adopting the even tougher California emission standards.
各州也可以任意选择,是否采用加利福尼亚州更严格的排污标准.
来自英汉非文学 - 环境法 - 环境法
4. Thus, noncontinuous emission limitations were appropriate only when continuous controls were infeasible.
因此, 非持续性排放限制只有在持续性控制技术变得不可行时才是适当的.
来自英汉非文学 - 环境法 - 环境法
5. One set of provisions tightens emission standards.
