常見例句

雙語例句

• Researches indicate that the new type of DTH hammer without drilling machine can make DTH hammer achieve percussive and rotary drilling using air compressor.
  借鑒鑿巖機的轉(zhuǎn)釬機構(gòu)，利用活塞的回程能量帶動鉆頭旋轉(zhuǎn)。
返回 percussive machine drilling