牙体壁厚度；根管疗法；研究。

Thickness of the tooth body; Root canal therapy; Research.

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本发明主要是针对昆虫体壁的物质性而设计、研制发明的。

The present invention is developed based on the physical property of insect body wall.

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考虑到前体壁面边界层厚度对流动结构的影响，提出了边界层效应的修正方法。

Taking into account the boundary layer effect on flow structure, a correct formula was given.

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考虑到前体壁面边界层厚度对流动结构的影响，提出了边界层效应的修正方法。

Taking into account the boundary layer effect on flow structure, a correct formula was given.

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