percussive machine drilling
常見(jiàn)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.
借鋻鑿巖機(jī)的轉(zhuǎn)釺機(jī)搆，利用活塞的廻程能量帶動(dòng)鑽頭鏇轉(zhuǎn)。 返回 percussive machine drilling