conical boiler

例句：

1. 1. The new conical boiler has been installed in the factory.
   新安装的圆锥形锅炉已在工厂投入使用。
2. 2. The engineers are working on a project to upgrade the old conical boiler.
   工程师们正在致力于一项升级旧圆锥形锅炉的项目。
3. 3.The conical boiler is designed to heat large areas with minimal energy consumption.
   圆锥形锅炉设计用于以最小能源消耗加热大面积区域。