Introduced control system, main construction process, working theory and working method.

介绍了定向钻穿越控制系统、主要施工程序、作业原理和作业方法。

youdao

Introduced control system, main construction process, working theory and working method.

介绍了定向钻穿越控制系统、主要施工程序、作业原理和作业方法。

youdao