This paper expounds the application of "graph theory" in machinofacture, Such as, analysis of process engineering, calculation of technological dimension chain and assemblage dimension chain, etc.
阐述“图论”在机械制造中的工艺过程分析、工艺尺寸链和装配尺寸链的计算等方面的应用。
This paper includes a systematic analysis and correlation study on the sporopollen assemblage, stratigraphic sequence and geochronology of the Siwangou red bed section in Yaojie, Gansu.
对窑街寺湾沟-炭洞沟红层孢粉和地层层序及时代进行了系统分析与对比研究。
Four diatom assemblage zones, each characterized by different diatom components, are distinguished by cluster analysis.
利用聚类分析划分了四个硅藻带。
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