中国山茱萸科的新分类群。
(生物学)具有一个或多个种类的分类群。
The characteristic features and biology of a particular kind of plant or plant group.
结论：续断属为一自然分类群，花粉粒的细微差异对种的划分有一定意义。
Conclusion: Dipsacus is a natural class group, and the slight difference of its poll...
数学家的挑战在于，如何对这些简单群的完整集合进行分类。
The challenge for mathematicians became how to classify the complete set of these simple groups.
根面细菌在营养需求分类上可归为氨基酸需求菌群。
The nutritional demand of bacteria in root plane was of amino acid type.
根面细菌在营养需求分类上可归为氨基酸需求菌群。
The nutritional demand of bacteria in root plane was of amino acid type.
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