这些砂岩体形成伸长的透镜体.These sandstone bodies form elongate lenses.在这个村庄附近, 透镜体的厚度达100米左右.Near this village, the thickness of this lens reaches abut a hundred metres.结果表明,砂岩透镜体油藏多数为它源性多期幕式成藏,其成藏机理可概括为隐蔽输导和幕式置换.The results showed ...
A region is an area lying between two adjacent landmarks.区是两个邻近界标之间的区域.The book stands out as one of the notable landmarks in the progress of modern science.这部著作是现代科学发展史上著名的里程碑之一.British landmarks are the establishment o...