pipeless

例句：

1. 1. The house is pipeless, so there's no need for a water heater.
   这所房子没有管道，所以不需要热水器。
2. 2. The new building is pipeless, which saves on energy costs.
   这座新建筑没有管道，从而节省了能源费用。
3. 3. The garden hose is pipeless, which makes it easier to move around in the yard.
   花园软管是无管道的，这使得在院子里移动更容易。