The observation station of surface movement is the important basis of acquiring the parameters of coal mining subsidences.

地表移动观测站是获得煤矿开采沉陷参数的重要依据。

youdao

The observation station of surface movement is the important basis of acquiring the parameters of coal mining subsidences.

地表移动观测站是获得煤矿开采沉陷参数的重要依据。

youdao