根据装配条件推导了二自由度五杆机构的双曲柄存在的必要条件。
The necessary condition for the existence of double crank of five - bar linkage with two degree of freedoms is derived on the basis of assembling conditions.
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。
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.
主要从结构内力、构件预制条件、现场装配条件、施工速度、防水效果以及经济性等方面进行比较。
The primary aspects considered include the internal force of the whole structure, the conditions of assembly linings, the speed of the construction, the waterproof and the economic effects.
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