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组系

组系

2012山东学位英语词汇表 - 豆丁网 ... connect 组组，组系 connection 组组，组系 conquest 征服 ...

2012山东学位英语词汇表 - 豆丁网 ... conjunction 组接组 connect 组组，组系 connection 组组，组系 ...

Genera may be subdivided into subgenera , and also , especially in plant taxonomy , into sections, subsection, series, and subseries.

The Xiaweidian Formation is a newly established formation, separated from the base of the Lower Cambrian Series in Western Hills, Beijing .