drive head meaning in Chinese
(装在钻杆上以承受锤击的)打头
传动机头
驱动装置
套管帽
套管头
Examples
- 9 maximum lifting capacity of top drive head 45 kn
9动力头最大起拔力45kn - Top drive head pull force and push force
动力头最大起拔力加压力: - Top drive head pull force push force
动力头最大起拔力加压力: - Top drive head max . torque
动力头最大扭矩: - Top drive head inner hole
通孔直径: