常見例句用作名詞 (n.)A lot of sludge was scooped out of the base of the river.從河底中挖出了許多淤泥。The trickling filter and activated sludge efficiencies cited required primary sedimentation and effluent circulation.列舉的生物濾池與活性淤泥法的效率就需要初次沉淀和回流。 返回 sludges