pitch diameter

• 层心直径； (齿轮的)节径； (螺纹的)中径

pitch diameter的用法和样例：

例句

1. The errors of the stand-off measurement and measurement errors made by pitch diameter gauge and ovality gauge are analyzed and compared.
   分析比较了紧密距测量以及中径和椭圆度量规测量的误差。