cover strata

• 盖层

cover strata的用法和样例：

例句

1. All the soil cover were stripped away.
   全部土壤盖层都被剥去了。
2. Thus, accumulation of oil in the reservoirs occurred after the domes had been sealed by the salt cover.
   所以，储集层中的石油聚集作用是发生在穹窿被盐岩盖层封闭之后。