移动转换
the general laws of geotechnical movement, transformation and destroy were analyzed from the interior of overburden and the earth's surface.
从覆岩内部和地表变形两个方面分析了岩层移动、变形及破坏的一般规律。
According to coal wall front force of support and workface support stress movement transformation relations, the main roof cycle pressure can be accurately forecast.
根据工作面煤壁前方支承压力和工作面支架受力之间的运动转化关系,可准确预报工作面老顶的周期来压;
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