coal sprinkler

例句：

1. 1.The coal sprinkler was used to cool the furnace.
   煤洒水器被用来冷却炉子。
2. 2. The coal sprinkler was a crucial component of the power plant's cooling system.
   煤洒水器是发电厂冷却系统的一个关键部件。
3. 3. The coal sprinkler had been installed in the mine to prevent dust from spreading.
   在矿井中安装了煤洒水器以防止灰尘扩散。