These results indicate that Subversion's own compression algorithm is slightly better at compressing binaries than the gzip command that was used to compress the files locally.
这些结果表明，Subversion自有的压缩算法在压缩二进制文件方面略强于使用本地压缩文件的gzip命令。
Pack: To compress and store data in a magnetic storage medium so as to save storage space. Unpack refers to de compressing.
密装：把数据压缩及贮存于磁体贮存媒介内以节省贮存空间。解开密装是把压缩的数据还原的意思。
The experiment result shows that this approach can keep the quality of images , and compress each layer to a good ratio . So it is useful in multi-layered image compressing and transmission.
实验结果表明本文算法在确保重构图像较高质量的前提下，各层图像都实现了较高的压缩比率，对图像的分层压缩与传输的实现具有较高的实用价值。
The experiment result shows that this approach can keep the quality of images , and compress each layer to a good ratio . So it is useful in multi-layered image compressing and transmission.
实验结果表明本文算法在确保重构图像较高质量的前提下，各层图像都实现了较高的压缩比率，对图像的分层压缩与传输的实现具有较高的实用价值。
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