1. Point out the tallest allow concent of ethyl hexanoate in strong aromatic chinese spirits of low concentration. 提出己酸乙酯在低度浓香型白酒中的最高允许量。
2. The concent of phenolic substances in Housui pear decreases rapidly after a slow increase, so does the PPO activity. 丰水梨的酚类物质含量呈先缓慢上升后迅速下降的趋势,PPO活性也呈先升后降趋势。
3. Limited to students who had taken Introduction to Environmental Biotechnology, Biochemistry, or concent by the instructor. 限修过环境生物技术概论或生物化学相关科目或经任课老师同意。