cone stop

例句：

1. 1.The cone stop is a device used toprevent the spread of fire.
   圆锥形的停止器是一种用来防止火灾蔓延的设备。
2. 2. Thecone stop was designed to improve the efficiencyof the conveyor system.
   圆锥形的停止器被设计来提高输送系统的效率。
3. 3.The cone stop was installed at the entranceof the factory to prevent accidents caused byoverheating.
   圆锥形的停止器安装在工厂入口处，以防止过热引起的事故。