groove with variable pitch
... 变极起动器 pole-changing starter 变距槽 groove with variable pitch 变流臂 convertor arm ...
基于18个网页-相关网页
·2,447,543篇论文数据，部分数据来源于NoteExpress
-
With the theory of kinematics, the universal model of changed Angle and variable pitch spiral groove on any turning surface is researched.
本文应用运动学理论，研究了任意回转体外表面上的变倾角变导程螺旋线的通用模型。
youdao
更多双语例句