crenatum AS1.542 harboring AK fbr gene could grow on the defined medium with the co-existence of 12mg/mL both of AEC and L-threonine respectively.是什么意思_crenatum AS1.542 harboring AK fbr gene could grow on the defined medium with the co-existence of 12mg/mL both of AEC and L-threonine respectively.在线翻译_英语_读音_用法_例句