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?；蚍惺勰┬问降交钚晕勰喙に囍袕娀到y(tǒng)去除污染物的能力； 返回 small particle size zeolite