缸体的实际型线是双弧外摆线的等距曲线，并由此导出其数学表达式。
The actual cylinder shaped conductor is isometric curve of double arc outside cycloid and its mathematic expression was deduced.
通过对周衍柏编写的《理论力学教程》第二版中的弧坐标中质点加速度表达式的推导作些改进。
In the book Course of Theorical Mechanics by Yanbai Zhou there are some mistakes about the expression of acceleration in arc coordinates, this paper has corrected them.
近年来，焊机的节能已成为一个十分重要的课题。本文就交流弧焊机的电容补偿之最佳取值问题作了论征，并导出了数学表达式。
In this paper, the optimum value of the compensation condenser for ac are welding machines are proved and given in forms of mathematical formulae.
根据空间凸轮曲面压力角的定义推导出新型弧面凸轮分度机构压力角的解析表达式，分析该机构压力角出现最大值的情况，同时对如何降低最大压力角提出了一些改进措施。
According to defining of the global CAM curve, the resolution express of press Angle about a new type of indexing mechanism with arc surface CAM is provided.
根据空间凸轮曲面压力角的定义推导出新型弧面凸轮分度机构压力角的解析表达式，分析该机构压力角出现最大值的情况，同时对如何降低最大压力角提出了一些改进措施。
According to defining of the global CAM curve, the resolution express of press Angle about a new type of indexing mechanism with arc surface CAM is provided.
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