数据压缩技术有无损压和有损压缩两大类，这些压缩技术又各有不同的标准。
The compression techniques of multimedia data are divided into no-losing compression and losing compression. Different criterions are provided for these compression techniques.
数据压缩技术有无损压和有损压缩两大类，这些压缩技术又各有不同的标准。
The compression techniques of multimedia data are divided into no-losing compression and losing compression. Different criterions are provided for these compression techniques.
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