常見例句

雙語例句

• Model QZ100K drill was developed by the machinery plant, Changsha Institute of Mining Research, With a China National practical new-type patent.
  QZ100K型潛孔鉆機(jī)由本院機(jī)械廠研制，并已獲國家實(shí)用新型專利。
返回 mining machinery plant