percussive machine drilling

基本解释

• [能源科学技术]冲唤钻眼

英汉例句

双语例句

• Researches indicate that the new type of DTH hammer without drilling machine can make DTH hammer achieve percussive and rotary drilling using air compressor.
  借鉴凿岩机的转钎机构，利用活塞的回程能量带动钻头旋转。

• percussive machine drilling更多例句

专业释义

能源科学技术

• 冲唤钻眼