地层圈闭(油气藏)
指沉积层由于纵向沉积连续性中断而形成的圈闭,即与地层不整合有关的圈闭。油气在其中聚集就成为地层油气藏。
A campus emergency ______ occur at any time of the day or night, weekend, or holiday, with little or no warning.
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