中文名：原地面 英文名： original ground 定 义：原地面是指没有被破坏的原始地面。在工程施工中泛指施工之前的原地貌。
原地面如为水磨石、地板等光滑地面须先凿成粗糙面。
It the original ground is terrazzo, the smooth ground like floor should firstly become rough surface.
利用已有的丈量控制点对原地面高程进行放样，确定开挖深度。
By means of the existing measurement control points on the ground elevation for lofting, determine the excavation depth.
通过初步分析认为，太阳活动是引起青藏高原地面加热场强度变化的重要原因之一。
Through the primary analyzing, we think that the sun activity is to cause the one of the important reasons of surface heating field change over QXP.
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