Treated sludge basically realized the harmlessness, reduction, the environment will not cause secondary pollution.

处理后的污泥基本实现了无害化，减量化，不会对环境造成二次污染。

youdao

Treated sludge basically realized the harmlessness, reduction, the environment will not cause secondary pollution.

处理后的污泥基本实现了无害化，减量化，不会对环境造成二次污染。

youdao