pre-salt petroleum system

• 盐下油气系统

pre-salt petroleum system的用法和样例：

例句

1. Salt rocks are widely developed in Konggu Formation in Lower Permian, providing regional cap rock conditions for oil and gas accumulation below the halite.
   下二叠统孔谷组厚层盐岩广泛发育，为盐下油气聚集提供了区域性盖层条件。