mintunCOCA²²⁵⁴³⁶ 基本例句 🌏明屯 By seismic exploration, a lens was discovered in the south Da- mintun depression in Liaohe oil field. The maximum thickness of the lens is2,800 meters, its flanks thinning. 在辽河油田大民屯凹陷的南部,地震工作发现的一个透镜状地质体,其中心部位最大厚度为2,800米,向两翼变薄。 cnki