Glutamine Synthetase (GS) activity in leaves increases with increasing nitrogen level, but in roots, GS activity drops rapidly at high nitrogen levels.是什么意思_Glutamine Synthetase (GS) activity in leaves increases with increasing nitrogen level, but in roots, GS activity drops rapidly at high nitrogen levels.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句