In this paper, the dynamic, static and automatic precision orientation system applied to underground projects is studied.

本文研究了应用于地下工程的动、静态自动精密导向系统。

youdao

In this paper, the dynamic, static and automatic precision orientation system applied to underground projects is studied.

本文研究了应用于地下工程的动、静态自动精密导向系统。

youdao