fire unit (FU)的用法和樣例：
例句
- A series of fire extinguishing equipments made by Jiangxi Aeridragon New Material Co. Ltd.
江西三星氣龍新材料有限公司系列滅火裝置簡介。 - The use of automatic fire sprinkler systems fits into this category.Once the fire has started, the sprinklers operate to reduce the impact of the fire.
自動洒水滅火裝置就是個例子，火災一旦發生，洒水車立即去滅火。
