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通过特定的哈希函数把任意长度的数据变换成固定长度的输出值,此数值用于标识电子数据的唯一性或完整性。又称散列值。这里提到的“任意长度的数据”,通常是一个文件,但也可以是一个数值、一串符号、一个文件夹、一个磁盘分区,也可以是保存在一个U盘、一块硬盘、一个磁盘阵列等存储介质上的全部数据。
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policy owner
policy paradigm
policy paradox
policy pledge loan
policy problem identification
policy process evaluation
policy proposal evaluation
policy research center for environment and economy, ministry of ecology and environment of the people's republic of china
policy results forecast
policy-science of law
policy sciences
policy sciences movement
policy science theory
policy science tradition of Lasswell & Dror
policy secondary market
policy secondary market in the United States
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policy surrender
policy system of ecological civilization
policy termination
policy tools for reducing carbon emissions
policy topography
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