实践证明，螺杆钻纠斜是最有效的纠斜方法。

As demonstrated in practice, the auger string hole straightening is the most effective.

youdao

实践证明，螺杆钻纠斜是最有效的纠斜方法。

As demonstrated in practice, the auger string hole straightening is the most effective.

youdao