另外，也研究了富足半群的本原元。

In addition, we also consider primitive elements of abundant semigroups.

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介绍轮胎有限元分析的基本原理。

The basic principle of FEA for tire was described.

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幂等元与本原幂等元在环中有非常重要的地位与作用。

Idempotents and primitive idempotents have very important station in the ring.

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幂等元与本原幂等元在环中有非常重要的地位与作用。

Idempotents and primitive idempotents have very important station in the ring.

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