2) oil field rotary drill
油田转盘钻机
3) oil field mechanical drilling
油田机械钻井
4) drill pipe for oil field
油田钻杆
5) farmland pit digging machine auger
坑田机钻头
1.
On the basis of the method of quality reduction and rigidity enforcement, a vibration control of farmland pit digging machine auger was studied.
在自制了旋转件弯曲振动专用夹具的基础上，根据非电量电测技术，试验求得了坑田机钻头减振设计前后钻尖处的振动状态，验证了减振的有效
补充资料：北极斜坡油田(见阿拉斯加北坡油田)
北极斜坡油田(见阿拉斯加北坡油田)
Arctic Slope Oil Field
北极斜坡油田阿拉斯加北坡油田。(Aretie Slope 011 Field)见
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条