Some graphs of surface movement and distortion can be shown also when working face is advanced with different mining speed in certain time.
能够作出在一定时间内不同开采速度条件下的地表移动变形曲线。
Some graphs of surface movement and distortion can be shown also when working face is advanced with different mining speed in certain time.
能够作出在一定时间内不同开采速度条件下的地表移动变形曲线。
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