strata behaviours during end-mining

英 美
  • 末采矿压显现
  • during prep.在...期间
  • end n.结束;末端;目标;死亡;部分;终点站;端点;半边球场;剩余物,残余;过世v.终止,结束
  • mining n.采矿;矿业
  • strata n.地层名词stratum的复数形式.