lower Permian series的用法和樣例：
例句
- The secondary dolomite and paleokarst of the Lower Permian Series in Sichuan Basin is one of the important atectonic reserviors in the basin.
四川盆地下二疊統中次生白云巖及古巖溶是下二疊統主要的非構造圈閉儲層之一。 - Abundant materials for karstification in Jinfoshan are provided by medium or thick-bedded blocky limestone and biologic clastic limestone of the Lower Permian system.
下二疊統的中厚層塊狀灰巖及生物碎屑灰巖給金佛山巖溶作用的發(fā)生提供了堅實(shí)的物質(zhì)基礎。
