The authorities are still battling to make the plant safe after earthquake damage caused the cooling system to fail in two reactors, damaging their cores.

在地震造成的损坏导致其中两个核反应堆的冷却系统失灵、损坏反应堆核心后，有关部门仍在竭尽全力确保这座核电站的安全。

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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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A fail-safe backup system ensures reliable operation, even if a fault develops in the main circuit.

一个自动防故障装置的后备系统确保了可靠的运转，即时在主要电路产生了故障。

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

NEWYORKER: Trial by Fire

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