heat-supply system based upon low temperature nuclear reactor

例句：

1. 1.The new building has a heat-supply system that can provide hot water for 200 people.
   这座新楼有一个可以供200人使用的供热系统。
2. 2. The old house had an outdated heat-supply system that was difficult to maintain.
   这所旧房子的供热系统过时了，难以维护。
3. 3. The engineer designed a more efficient heat-supply system for the new factory.
   工程师为新工厂设计了一个更高效的供热系统。