实体隔离

电源、控制装置和关键安全部件将使用实体隔离、防护或其他可接受的方法极性保护。

Power sources , controls , and safety critical components will be protected by physical separation , shielding , or other acceptable methods .

相反，他们必须设法“将金融不稳定的后果与实体经济隔离开来”。

They must , instead , try to " insulate the real economy from consequences of financial instability " .

本文根据金航网内部端到端安全通信的需求，提出了基于IPSECVPN技术的端到端虚拟组网思想，引入了虚拟工作组及组策略的概念来实现不同VPN通信实体的安全隔离。

According to the internal communication security requirement of Golden Aviation Network , this paper proposes a theory of end-to-end virtual network based on IPSec VPN technique . It introduces a concept of virtual workgroup and group policy to isolate different VPN communication entities safely .