air rock drill [机] 气动凿岩机
- Clogged or cave-in of the hole, can lead to a stuck drill. It is best therefore, to cleans the hole regular intervals, by carrying out air-blowing with the rock
5、因为堵块和空穴都可能导致卡钻,因此应定期采用冲击器强吹,定期清洗孔底。
您正在访问的是
中国词汇量第二的英语词典
更多精彩,登录后发现......