subtle oil-gas reservoirs的用法和樣例：
例句
- Horizontally, controlled by the geological structure of sags, subtle reservoirs of various types developed in different formations.
平面上，受凹陷地質結構控制，不同構造位置發育不同類型的隱蔽油氣藏。 - 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.
車西地區因自身地質結構特點在勘探初期以來一直以隱蔽油氣藏為主。
