Mean normal diameter pitch 中点法向径节
pitch diameter [机] 节圆直径 ; [机] 节径 ; 分度圆直径
pitch diameter of roller set [机] 滚子组的节圆直径
variational diameter-pitch spiral 变径距螺旋
pitch diameter of ball set 球组的节圆直径 ; [机] 球组节圆直径
pitch circle diameter 节圆直径 ; 电极圆直径 ; 装配节圆直径 ; 分度圆直径
PBD Pitch Circle Diameter 节圆直径
standard pitch diameter 分度圆直径
Diameter pitch threads number and range D. p.
径节螺纹种数与范围。
Bolt circle diameter and pitch between bolt holes.
螺栓圆周直径及螺栓孔间距。
This article brings to Light the internal relations and difference between single pitch diameter and actual pitch diameter by means of geometrical analysis of several parameters of pitch diameter.
通过对普通螺纹中径诸参数的几何分析，揭示出其单一中径与实际中径的内在联系与区别。
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