pantiling

例句：

1. 1. The engineer designed a new pantiling system for the factory.
   工程师为工厂设计了一种新的通风管系统。
2. 2.The pipes in the basement are old and need to be replaced.
   地下室的管道很旧，需要更换。
3. 3.The ventilation system uses pantiling to distribute air throughout the building.
   通风系统使用管道来在整个建筑中分配空气。