A down flow biological fluidized bed reactor (DBFB) was used to discuss the stability of nitrification through nitrite under high concentration of ammonia .是什么意思_A down flow biological fluidized bed reactor (DBFB) was used to discuss the stability of nitrification through nitrite under high concentration of ammonia .在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句