1)test boring machine,试钻机2)drill rig test stand,钻机试验台3)rock bit testing rig,牙轮钻头试验钻机4)probe boring,试钻5)funnel drilling machine,钻斗钻机6)drilling capacity,钻机钻井
用法例句
With advancing of drilling capacity of drill rig for underground coal mine,the previous drill rig test stand can not meet the need for testing the torque moment over 6000 Nm.
