secondary fire regenerator

例句：

1. 1.The secondary fire regenerator is a crucial component in the firefighting system.
   次级火灾恢复器是消防系统中至关重要的组成部分。
2. 2.The engineer used the secondary fire regenerator to extinguish the flames.
   工程师使用次级火灾恢复器来熄灭火焰。
3. 3.The secondary fire regenerator was designed to prevent secondary fires from starting.
   次级火灾恢复器被设计用来防止二次火灾的发生。