low pressure boiler

例句：

1. 1.This low pressure boiler is designed for heating homes and offices.
   这个低压锅炉被设计用来供暖家庭和办公室。
2. 2. The low pressure boiler has a small size, making it easy to install.
   低压锅炉体积小，安装起来很方便。
3. 3.Low pressure boilers are more energy-efficient than high-pressure boilers.
   低压锅炉比高压锅炉更节能。