In this paper, 4A molecular sieves,activated clay and aluminum sulfate were prepared with the exhausted acid and alkali in the process of 4A molecular sieves by bentonite.是什么意思_In this paper, 4A molecular sieves,activated clay and aluminum sulfate were prepared with the exhausted acid and alkali in the process of 4A molecular sieves by bentonite.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句