The maximum content of chl a of 48.5 mg/g was found in the medium with 1.0 mmol/L urea,and high nitrogen was found to be benefit to biosynthesis of chl a.是什么意思_The maximum content of chl a of 48.5 mg/g was found in the medium with 1.0 mmol/L urea,and high nitrogen was found to be benefit to biosynthesis of chl a.在线翻译_英语_读音_用法_例句