早些时候，布朗宣布削减装有三叉戟的潜艇数量，这属于减少英国核威慑的一部分。
Earlier, Mr Brown announced a reduction in the number of submarines that carry Trident, the British nuclear deterrent. See article.
提出了一种基于自适应四叉树分形编码的数字水印技术。
This article introduces a digital watermarking technology based on adaptive quadtree fractal coding.
提出了基于四叉树分形编码的水印算法，通过在不同寻找区域中搜索最佳匹配定义域块来嵌入水印。
This paper proposes a watermarking algorithm based on quadtree fractal coding, which is to search for the optimized matched domain blocks in different regions and to embed the watermarking.
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