percussive machine drilling
常见例句
- Researches indicate that the new type of DTH hammer without drilling machine can make DTH hammer achieve percussive and rotary drilling using air compressor.
借鋻鑿巖機的轉釺機搆，利用活塞的廻程能量帶動鑽頭鏇轉。 返回 percussive machine drilling