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。
Speed up development of Panxi iron mining area.
加快攀西铁矿山建设。
To speed up mining sequential patterns, reducing the time cost is very important during discovering sequential frequent sequence.
提高序列模式挖掘算法效率的关键在于减少发现频繁序列的时间。
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