液压振动，液压转向，动力换挡驱动。
Hydraulicvibrating and steering, Back wheel mechanical drive.
井下液压振动是一种新的物理法采油工艺技术。
The well hydraulic vibration is a new kind of oil recovery technology with physical method.
井下液压振动是一种新的物理法采油工艺技术。
The well hydraulic vibration is a new kind of oil recovery technology with physical method.
应用推荐