The paper mainly solves the problem of reasonable dimensioning parts with the help of the concept of dimension chain.

 
  • 因此,零部件圖樣上標注尺寸除應滿(mǎn)足"正確、完整、清晰"外,還應做到合理。
今日熱詞
目錄 附錄 查詞歷史
国内精品美女A∨在线播放xuan