hot-water heating design

例句：

1. 1. The hot-water heating design of the building isvery efficient.
   这座建筑的热水供暖设计非常高效。
2. 2. The hot-water heating designof this room is perfect for winter use.
   这个房间的热水供暖设计非常适合冬季使用。
3. 3. The hot-water heating design ofthe building has been improved significantly in recentyears.
   近年来，该建筑的热水供暖设计已经显著改进。