...度必须高于72 度(一般为50 度)，并在交付影像 时提供卫星感测器较精确之几何模式參數，称为影 像几何模型(Image Geometry Model, IGM)；可使几 何精度最佳化，特别是地形起伏较大的区域，为目 前理論精度最好的演算法(吴启南、等，2002...
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The math model is used to image the essential relation of every variable in the process, maybe the model is algebra equation, or differential equation, or geometry curve.
数学模型用来反映过程本身各有关变量之间本质关系，它可能是代数方程、微分方程或几何曲线。
A second generation mold requires a master model geometry that is a mirror image about the part design surface as described in the schematic below.
第二代模具要求原模的几何形状是部件形状的镜像。
This paper introduces an architecture modeling method based on geometry and image. the method exploits thoroughly the property of buildings, and make it very easy to recover the geometric model.
本文介绍一种基于几何和图象的建筑物建模方法。它充分利用了建筑物的特性，使建筑物基本几何模型的恢复变得比较容易。
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