数据点云分块是逆向工程中一个非常关键的环节，测量数据的分块结果将直接影响到曲面拟合及CAD模型重建的质量。
The point cloud segmentation is an extremely essential step in the reverse model design. The segmentation results will affect the surface fitting and the CAD model reconstruction quality directly.
结果表明，在所用分组密码是伪随机置换的条件下，方案在分块适应性攻击模型下是可证明安全的。
Investigation shows that the scheme is provable security under the blockwise adaptive attack model if the underlying block cipher is a pseudorandom permutation.
针对电力系统并行仿真算法中的分块对角加边模型提出了一种新的交替迭代解法。
A new alternate iteration method based on block bordered diagonal model for parallel computation in simulation of electric power system dynamics is presented in this paper.
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