The slices are truncated by the pre-Bulawayan erosion surface. 巖片受前布拉瓦約侵蝕面切割。
The erosional surface dissected by such valleys may subsequently become an unconformity in the stratigraphic sequence. 被這種河谷切割的侵蝕面后來(lái)可能成為地層層序中的不整合性。
As the ancient plain uplifted, it formed the mountain erosion surface with the potholes on its surface. 準平原及壺穴最后被抬升到山地的頂部，構成了山地夷平面。
This paper also analyzes the relation between the slopes and elevations and gets the information of planation surfaces in the Dabie orogenic belt. 本文統計分析了坡度與高程之間的相互關(guān)系，并提取了夷平面信息。
