基本变拓扑方式是变拓扑机构拓扑结构变化的基本原理之一。

It is one of the fundamental principles of the topological structure changing of the variable topology mechanisms.

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依据该基本原理，发现、提出并充分证明了变拓扑机构基本变拓扑方式的两个相关性定理及其三个推论。

According to that, two correlativity theorems and three corollaries of basic changing topology ways of the variable topology mechanisms are discovered, put forward and proved strictly.

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并以典型的并联机构为实例，对变拓扑并联机构的变拓扑方式、拓扑描述和机构运动输出进行了相关的研究。

The topology changing way, topological description and topology and displacement output are studied through taking a typical parallel mechanism for an example.

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