Familiar with railway electrification, contact line system, processes such as mechanics, plastics, founding, forging, molding etc.

 
  • 熟悉鐵路電氣化、接觸網(wǎng)系統、機械、材料、鑄造、鍛造、模具等加工過(guò)程。
今日熱詞
目錄 附錄 查詞歷史
国内精品美女A∨在线播放xuan