pollutive

Without any pollutive source and radiation source green environmental protection.

不含任何污染源和辐射源，绿色环保。

To carry out a method of tracing and investigation against the industrial sewage directly discharged into rivers so as to search the main pollutive source.

排入河道的工业污水来源采取追踪调的方法，寻找主要污染源。