... 椭性抛物面 elliptic paraboloid 椭圆活塞 elliptic piston 椭圆偏光,椭圆极化 elliptic polarization ...
基于1个网页-相关网页
·2,447,543篇论文数据,部分数据来源于NoteExpress
To improve performs of engine, the piston skirt curve is designed to be middle convex and varied elliptic pattern, copying manufacturing with master piston is commonly used.
为提高工作性能,活塞裙部设计成中凸变椭圆型,立体靠模仿形车削是常用的加工方法。
youdao
应用推荐
模块上移
模块下移
不移动