emission
柯林斯詞典
1. N-VAR An emission of something such as gas or radiation is the release of it into the atmosphere. 排放[正式]
The emission of gases such as carbon dioxide should be stabilized at their present level. 二氧化碳之類氣體的排放應(yīng)該被控制在目前的水平上。
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emission /??m???n/ (emissions)
劍橋詞典
- C1 [ 不可數(shù)或單數(shù)名詞：沒有復(fù)數(shù)形式的名詞 ]
the act of sending out gas , heat , light , etc.
（氣體、熱量、光線等的）排放，散發(fā)，射出
Environmental groups want a substantial reduction in the emission of greenhouse gases . 環(huán)保組織要求切實減少溫室氣體的排放量。
[ 可數(shù)名詞：有復(fù)數(shù)形式的名詞 ]
an amount of gas , heat , light , etc. that is sent out
排放物；散發(fā)物
carbon dioxide emissions 二氧化碳的排放 返回 emission