传统的被动防护已不能适应当前的安全形势，纵深防御和主动防御应势而生。
Traditional passive protection can't adapt to this new situation, then enhanced defense and proactive defense are proposed.
传统的被动防护已不能适应当前的安全形势，纵深防御和主动防御应势而生。
Traditional passive protection can't adapt to this new situation, then enhanced defense and proactive defense are proposed.
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