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Unverified50% confidenceFactExact time

美国国家标准与技术研究院(NIST)在SP 800-82工业控制系统安全指南中将物理隔离列为最高安全等级(SL-4)的基础性要求

1
Sources
50%
Confidence
Long-term
Relevance
7/7/2026
First Seen

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