... common normal length 公法线长度 common normal length measurement 公法线长度测量 common normal micrometer 公法线千分尺 ...
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介绍了齿轮精度检测和齿轮参数测绘中用公法线长度测量的基本原理和基本方法。
Introduces the rationale and techniques of common normal length measurement in the test and mapping of parameters for gears.
分析齿轮主要参数，提出用测量跨棒（）和公法线长度计算斜齿圆柱齿轮螺旋角的测绘方法，并推导出螺旋角的计算公式。
In this paper calculating method of lead angle of helical gear by measuring span length of length bar and base tangent length is put forward and lead angle calculating formula is deducel.
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