subtle oil-gas reservoirs的用法和样例：
例句
- Horizontally, controlled by the geological structure of sags, subtle reservoirs of various types developed in different formations.
平面上，受凹陷地质结构控制，不同构造位置发育不同类型的隐蔽油气藏。 - The examination of the mechanism and controlling factors of the oil pools cited above has revealed that the Chexi region is expected to be a poten.
车西地区因自身地质结构特点在勘探初期以来一直以隐蔽油气藏为主。
