常見例句雙語例句And the performance of activated sludge system was improved by add small particle size or powdery zeolite.也可以直接投加小顆粒或沸石粉末形式到活性汙泥工藝中強(qiáng)化系統(tǒng)去除汙染物的能力; 返回 small particle size zeolite