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pitch circle diameter
auto. 车轮螺栓孔分布圆直径; 齿轮圆直
mech. 节圆直径
mech.eng. 圆直齿轮的
pitch-circle diameter
auto. 车轮螺栓孔分度圆直径
 English thesaurus
pitch circle diameter
railw., abbr. p.c.d.
pitch circle diameter: 2 phrases in 1 subject
Automobiles2