rotary drilling rig
短语词组
- rotary y drilling rig 旋转钻机
- hydraulic rotary drilling rig 液压旋挖钻机
- large rotary drilling rig 大型旋挖钻机
- Rotary drilling rig construction 旋挖钻机
- Components of Rotary Drilling Rig 钻井系统部件
- Rotary Drilling Rig auger bit 旋挖钻机用旋挖齿
- drilling rig rotary table 石油钻机转盘 返回 rotary drilling rig