emission是什么意思

emission

英 [ɪ'mɪʃ(ə)n] 美 [ɪ'mɪʃən]

n. （光、热等的）发射，散发；喷射；发行
n. (Emission)人名；(英)埃米申

英文词源

emission (n.): 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

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。

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.

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.

5. One set of provisions tightens emission standards.: 一套使排放标准更加严格的规定.

相关单词