Results monomer of rubescensin A was obtained by using determinate ratio of organic regents and recrystallization.
结果在一定比例的有机溶剂洗脱下并利用重结晶可以得到冬凌草甲素纯品.
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Each Concordia is completely independent and has its own president, faculty, and board of regents.
每所协和的院校完全独立运作,有自己的校长 、 师资及校董会.
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