expansion shell type heater

例句：

1. 1. The new heating system uses an expansion shell type heater to provide even heat distribution throughout thebuilding.
   新的供暖系统使用膨胀型外壳式加热器，以在整个建筑中均匀地提供热量。
2. 2. The expansion shell type heater is designed to maintain a stable temperature in the room, preventing hot spots from forming.
   膨胀型外壳式加热器设计用来保持房间内的温度稳定，防止形成热点。
3. 3. In cold weather, the expansion shell type heater can be used to warm up the entire house quickly and efficiently.
   在寒冷的天气里，可以使用膨胀型外壳式加热器快速而有效地温暖整个房屋。