This paper makes a meshing analysis about the spiroid gearing. Using the method of equivalent worm gearing, the assembly condition of Archimedes spiroid gears has been obtained.

通过锥蜗杆传动副的啮合分析，用当量圆柱蜗杆副的分析方法，得出阿基米德锥蜗杆副的装配条件。

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Compared with a turbine worm device which is adopted by the prior art, the invention has simple structure, convenient manufacture, and easy assembly.

与现有技术中所采用的涡轮蜗杆装置相比，结构简单，加工方便，装配容易。

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The mesoporous titanium dioxide was synthesized by using triethanolamine as a template with worm-like mesostructure via self-assembly route.

采用模板剂导向自组装法以三乙醇胺为模板剂合成具有蚯蚓状孔道结构的二氧化钛介孔分子筛。

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