Container loading is the three-dimensional problem in "cutting and packing" problems. It is combined optimization with complex constraint condition.
集装箱装入问题是“切割和装入”问题领域中的三维空间问题，是具有复杂约束条件的组合优化问题。
The plastic zone size of the crack tip is relative to three dimensional constraint which depends upon not only the plate thickness but also the load and the material property.
裂纹尖端塑性区的大小与其三维约束状态有关，而三维约束状态不仅与板厚还与外载荷、材料性质有关。
Combined with weighted filtration to successful sample points, it uses the method of sampling in three-dimensional space and range constraint to acquire three-dimensional coordinates of nodes.
为了减小定位误差和提高算法的适应性，利用三维空间抽样和范围约束的方法，并结合对成功样本点的加权筛选，获得节点的三维估计坐标以实现抽样定位。
After analysing the traditional position and constraint matrix, a judgement criterion of deterministic location for two-dimensional part and three-dimensional part has been given.
通过对定位矩阵的分析，提出了二维零件和三维零件确定性定位判断准则。
After analysing the traditional position and constraint matrix, a judgement criterion of deterministic location for two-dimensional part and three-dimensional part has been given.
通过对定位矩阵的分析，提出了二维零件和三维零件确定性定位判断准则。
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