overburden strata

常见例句

The overburden strata movement is a complicated time and space process.
覆岩层的运动是一个复杂的时空过程。
This kind of strata is distributed widely in the Quaternary overburden layer of mountain riverbeds and mountain sloping field.
这类地层广泛存在于山区河床，山前坡地等第四系覆盖层中。
Based on the similar material simulation and prectical experiment in situ, the movement charactedistic of overburden strata of longwall sublevel caving method has been studied in the paper.
本文用相似材料模拟，现场实测等方法研究放顶煤开采覆岩活动规律。