短语词组短语axial varying pitch 轴向变螺距axial l pitch 轴向节距;轴向齿距axial increasing pitch 轴向递增螺距axial base pitch 轴线法线节距Axial diametral pitch Z 轴向径节AXIAL DIAMETRAL PITCH 轴径节距axial pitch error 轴向节距误差pitch axial 轴向节距 返回 axial pitch