The sewage treatments with the combination of an anaerobic fixed film reactor followed by a high rate trickling filter without re circulation and with the earthworm bio filter were investigated.是什么意思_The sewage treatments with the combination of an anaerobic fixed film reactor followed by a high rate trickling filter without re circulation and with the earthworm bio filter were investigated.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句