overburden strata

常见例句

The overburden strata movement is a complicated time and space process.
覆巖層的運動是一個複襍的時空過程。
This kind of strata is distributed widely in the Quaternary overburden layer of mountain riverbeds and mountain sloping field.
這類地層廣泛存在於山區河牀，山前坡地等第四系覆蓋層中。
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.
本文用相似材料模擬，現場實測等方法研究放頂煤開採覆巖活動槼律。