The residual nitrogen existed mainly in organic form or fixed NH 4 + in DCD treatment but mainly in NO 3 N form in other treatments.是什么意思_The residual nitrogen existed mainly in organic form or fixed NH 4 + in DCD treatment but mainly in NO 3 N form in other treatments.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句