The practice proved that judging blasting effect by means of the load change on props is an easy and applicable surveying and analysis method.

实践证明，利用支柱载荷变化判断爆破效果是一种简单实用的测试和分析方法。

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This paper introduces the fast calculating method in accordance with least condition linearity error with FGF judging method. The method is Yery easy to complete with computer, simple and clear.

介绍一种按FGF判断法求符合最小条件直线度误差的快速算法，该算法很容易在计算机上实现，具有简单、明了的特点。

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So this scheme is an easy and high efficient method to embed watermark. And the capacity of watermark can be doubled by judging four regions.

由此表明，该算法是一种简单、高效的视频水印隐藏方案，并且细化区域的分类，可以达到使隐藏的水印信息加倍的效果。

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