Firstly, the linkage is decomposed into two parts: a dyad and a four-bar linkage.

 
  • 首先將該機構拆分為一個(gè)雙桿組和一個(gè)四桿機構;
今日熱詞
目錄 附錄 查詞歷史
国内精品美女A∨在线播放xuan