摇杆
Begin with the analysis and the investigation of the basic principle chart of illustrated diagram method of type ⅰ and ⅱ institution of plane crank jointed arm which is designed according to the stroke velocity ratio coefficient.
从分析、考察按行程速比系数K设计ⅠI型、Ⅱ型平面曲柄摇杆机构图解法的基本原理图入手,对最佳辅助角λ(?)
英语网 · 双语娱乐资讯
英语网 · 高中英语
英语网 · 英语口语