The second feature is it can create guiding force with three rotational guiding gears to change the gravity force and inertia force to the force to cut the bulges on the wall,and help the...

• 在装置最下部增加了三个导向自转牙轮,能够产生导向力并可将重力和惯性力转化为对井壁凸起部分的刮削作用。该装置进行了现场实验,达到了预期效果。