percussion drilling
短语词组
- percussion tool drilling 顿钻钻井法;标签
- percussion reversed drilling 冲击反循环钻凿
- percussion rotary drilling technology 冲击旋转钻井技术
- percussion n drilling 冲魂井;冲魂
- percussion n drilling machine 冲唤钻机
- downhole percussion rock drilling 潜孔冲击凿岩
- percussion rotary drilling 冲击回转钻进
- percussion n drilling system 冲魂井方法
- percussion drilling system 冲魂井方法 返回 percussion drilling