The first one employs the fracture parameter, being the distance from the point of applying the indentation load to the specimen edge.
第一个采用了断裂参数，是距离的应用压痕负荷的标本优势。
Sensitivity is different for different differential operators, how to choose a suitable edge detection operator to obtain exact information of edge, is the essential step for fracture surface image.
不同的微分算子对边缘的敏感程度是不同的，如何选用适当的边缘检测算子得到准确的边缘信息，就成为断口图像处理的关键步骤。
Then, the fracture problem of three dimensional FGM strips with center through cracks or edge through cracks is investigated.
接着，本文研究了含有中心贯穿裂纹和边沿贯穿裂纹 三维功能梯度板的断裂问题。
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