... 中国论文网 关键词：烟草马铃薯Y病毒；三碱基组；概率；K-M聚类； [gap=991]Key words： potato virus Y； three-base-groups； probability； K-M clustering ...
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Within the content model, the items are primarily organized into into three destinct groups: base, metadata, and content.
在内容模型中，项目主要由以下三个不同的组构成：基础、元数据和内容。
Setting up specialties should base on the vocation groups, adhere to four principles, and adjust the specialties properly according to the change of three big markets and industrial structure.
专业设置以职业群为依据，在设置过程中遵循四大原则，并根据三大市场的变化及其产业结构变动适当调整专业。
According to the cluster analysis and principle of classification, authors believe that Compositae may be divided into three groups on the base of 31 characters.
按照对31个性状的聚类分析和分类学原理，我们认为菊科可分为三个类群。
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