污染源污染

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1.

Conditions are often poor : Dolphins are sometimes kept in small pools and exposed to sewage drain-off and other pollutants .

事实上，海豚的处境很糟糕：有时，海豚会被饲养在很小的水池里，任由下水道污物和其他的污染源污染。

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2.

The determination of odorant emission from an odor pollution source is a difficult problem .

恶臭污染源污染物排放量的确定是一个难题。

3.

Total Quantity Monitoring Management Information System for Pollutant of Key Pollution Sources

重点污染源污染物排放总量监测管理信息系统