电梯系统配备了多重故障保护装置，以防突然断电时发生意外。

The elevator system is equipped with several ___fail-safes to prevent accidents during sudden power outages.

核电站配备了多重故障保护装置，确保即使主系统失灵也能安全运行。

Nuclear power plants have multiple ___fail-safes to ensure safe operation even if the main systems malfunction.

核电站的设计包含多重安全措施，当系统检测到异常时会自动启动。

The nuclear power plant has multiple ___fail-safes that activate automatically when anomalies are detected.