地形面 meaning in Chinese

topographic surface

In essence, this isopach map represents the simulated paleotopographic surface of the eroded mississippian .
实质上，这张等厚图代表着遭到侵蚀的密西西比系的模拟古地形面。
The principium of the simplification criterion is that the light eradiated from surface will attenuate during it ' s transmission , so the light energy eradiate from the surfaces far from the viewer will become too faintness to attract the viewer ' s attention , thus the surfaces far from the viewer can be emerged into larger surface , then by combining with the residual light energy and terrain roughness , the new simplification criterion is formed
本文根据光能衰减原理，从人的视觉效果出发，认为由于地形面片辐射的光能将随着距离增加而不断衰减，所以距离视点较远处的面片辐射到视点的光能必然很微弱，这样就可以将远处的面片合并成较大的面片，从而达到简化地形的目的。