The method of telling a female from a male ginkgo tree is that females bear fruit and males don't.
区分雌雄银杏树的方法就是雌树结果,雄树不结果。
RESULTS: 19 kinds of Steroids in natural musk samples were illustrated by library searching or structure elucidation. and the characteristic method of telling the true from the false is proposed.
结果通过谱库检索及结构解析确定了19种甾体成分的结构并提出了辨别麝香真伪的特征方法。
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