名词
中文翻译：防火门保护圈
同义词：
['fire door guard', 'fire door protector']
例句：
-
1.The fire door protection ring is a crucial component of the building's emergency exit system.
防火门保护圈是建筑紧急出口系统的重要组成部分。
-
2.The installation of this fire door protection ring has significantly improved the safety of the building.
安装这个防火门保护圈大大提高了建筑物的安全性。
-
3.The fire door protection ring is designed to prevent smoke and heat from spreading through the doors during a fire.
防火门保护圈设计用来在火灾中防止烟雾和热量通过门传播。