通常数据库的备份过程比文件系统来得简单。
Often the backup process is easier for databases than for a file system.
常数级压缩方法利用排列组合原理,适于压缩字节内容无规律的文件。
The data compressing method based on constant grade makes use of permutation and combination theory.
常数级压缩方法利用排列组合原理,适于压缩字节内容无规律的文件。
The data compressing method based on constant grade makes use of permutation and combination theory.
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