secondary pollution
常见例句
- More will not cause secondary pollution.
更不会造成二次污染。 - We should control the secondary pollution.
我们应该控制二次污染。
dict.cn - When exposed to the air for more than 60 days, the product will turn into water with oxygen molecules and there will be no secondary pollution.
产品放置于自然环境中，60日后与氧分子结合又自动转化成清水，不会造成二次污染。
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