N-VAR
散发;释放;放射
An emission of something such as gas or radiation is the release of it into the atmosphere.
例句
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。