Although data protection provides the ability to regenerate data on a failure, it says nothing about the validity of the data in the first place.

虽然数据保护提供了在故障时重新生成数据的能力，但是这并不涉及处于第一位的数据的有效性。

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Past NFS versions did not have this ability and therefore could not negotiate for the quality of protection, data integrity, the requirement for authentication, or the type of encryption.

以前的NFS版本都没有这种能力，因此不能对保护的质量、数据的完整性、认证的要求或加密类型进行协商。

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Republicans also say Environmental Protection Agency regulations inhibit business activity and curtail the ability to create jobs.

共和党还认为，环保署的规定约束企业活动，限制企业创造就业的能力。

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They also have the unique ability to perform retroactive protection.

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If operated from a single site (perhaps in Grand Forks, North Dakota) in conjunction with one or more new, ground-based radars and other, existing early-warning radar systems, these weapons would have the ability to provide some protection to most of the continental United States.

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"It would create the potential for disclosure of all intercept material, regardless of sensitivity, to a wide number of people, thereby seriously undermining the ability to ensure the protection from public disclosure of sensitive intercept material and the capabilities and techniques by which it was obtained, " he said.

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