steam heating system with dry return

例句：

1. 1. Thenew steam heating system is more energy-efficient than the old one.
   新的蒸汽加热系统比旧的更节能。
2. 2.The steam heating system with dry return provides a comfortable living environment.
   带干燥回风的蒸汽加热系统提供了舒适的居住环境。
3. 3.The steam heating system with dry return is widely used in industrial buildings.
   带干燥回风的蒸汽加热系统在工业建筑中得到了广泛应用。