More than 1000 single shell ships of fail-safe system are used everywhere in the world.

安全系数脆弱的一千多艘单壳船，仍在世界各地游弋。

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The most part of the design in the Fail-safe system is to detect and discover faults, and lead the system to output safe information.

故障安全系统中的大部分设计是为了检测和发现故障，引导系统输出安全信息。

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The Type A fail-safe system 700 from Red Valve is sized to provide air pressure in the reservoir system to operate multiple valves from one reservoir.

美国红阀公司出品的A型无故障系统700从热储系统里提供气压，一个这种供气系统可以同时操作几个夹管阀。

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But maintaining a remote fail-safe system is trickier when dealing with employees' devices, which store their own apps, photos and other information.

WSJ: Danger-to-Go: Mobile Devices in the Workplace

Now Israel's airport authority is trying to explain how the knife got through what is vaunted as a fail-safe security system.

ECONOMIST: Taking a harder line

In recent years, though, questions have mounted over whether the system is fail-safe.

NEWYORKER: Trial by Fire