本文以CA142汽车后轮罩为对象，利用一种新的网格方法，计算了应变、应力等高线，分析了后轮罩出现冲压缺陷的原因。
In this paper, a new griding method is introduced to calculate strain and stress contour for rear wheel cover of CA142 truck and the reasons for stamping defects are analyzed.
介绍影像云纹产生的机理，等高线的计算公式、测试方法，并给出在医学中应用的部分实例。
The principle of image moire, the calculation method and testing method of the contour line are discussed, and some application examples in medicine are given.
由离散高程点建立的三角网d TM，能够在多方面应用。如生成等高线、建立地面模型、计算土方量等。
Triangle network DTM building with concrete height points can be used for various aspects, e. g. generating contours, building surface model and calculating earthwork, etc.
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