电梯配备了故障保护系统，会在检测到异常时自动停止运行。

The elevator has a ___fail-safe system that automatically stops it when detecting abnormalities.

这个电梯系统有故障保护机制，即使在停电时也能安全运行。

The elevator system has a ___fail-safe mechanism to operate safely even during a power outage.

核电站的故障保护系统会在紧急情况下自动关闭反应堆。

The nuclear power plant's ___fail-safe system automatically shuts down the reactor in emergencies.