... 直接射影元素 directly projective element 基准圆 director circle 直纹面的；基准锥面 director cone of a ruled surface ...
基于8个网页-相关网页
... 显示轮廓displayed profile 基准圆reference circle 显示基准圆displayed refecnce circle ...
基于8个网页-相关网页
安装基准圆 installation fundamental circle
基准圆周长 [机] datum circumference
基准圆柱 cylindrical datum
基准圆周 datum circumference
基准大圆 fundamental circle ; primary circle ; primary great circle
基准节圆 Standard Pitch Circle
基准面不圆度 NON CIRCULARITY OF REFERENCE SURFACE
基准椭圆 reference ellipsoid
基准节圆柱面 pitch reference cylinder
第一步要求切削卡爪外圆的目的是为了建立一个良好的基准，以提高修正精度，这一步最好不要省。
The first step requires cutting the claw of the claw, the purpose is to establish a good benchmark, in order to improve the accuracy of the correction, this step is best not to save.
如加工轴类工件时，总是先加工中心孔，再以中心孔为基准加工外圆表面。
When machining shaft parts, always machining center hole, and then to the center of the center hole for the processing of the outer surface.
同轴度公差评估的是轴线相对于基准轴线的偏差，而径向跳动公差则评估的是圆周线相对于同轴圆的偏差。
The coaxiality tolerance assesses the deviation of the axis from the datum axis, while the radial run-out tolerance assesses the deviation of the circumference line from a coaxial circle.
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