overburden strata

常見例句

The overburden strata movement is a complicated time and space process.
覆巖層的運動是一個復雜的時空過程。
This kind of strata is distributed widely in the Quaternary overburden layer of mountain riverbeds and mountain sloping field.
這類地層廣泛存在于山區(qū)河床，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(xiàn)場實測等方法研究放頂煤開采覆巖活動規(guī)律。