Compared with aluminum sulfate, PASS has advantages of less dosage, better flocculate properties, wider applied range.Preparation of PASS is a new approach of comprehensive utiliza...是什么意思_Compared with aluminum sulfate, PASS has advantages of less dosage, better flocculate properties, wider applied range.Preparation of PASS is a new approach of comprehensive utiliza...在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句