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。

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

youdao

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。

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

youdao