endogenous pollution

• 内源污染

endogenous pollution的用法和样例：

例句

1. Soil erosion and non-point source pollution are two serious environmental issues.
   土壤侵蚀与非点源污染是两大重要的环境问题。
2. The results showed that in-lake conduit pollutions were main exogenous pollutions of Xuanwu Lake and were the inducing factors that aggravated endogenous pollutions of take.
   结果表明，入湖沟渠污染是玄武湖的主要外源污染，也是加重胡泊内源污染的诱发因素。