air vent system is a type of…
- en constructed route system (n) ➜
- en consumer durable (n) ➜
- en container product (n) ➜
- en flow control device (n) ➜
- en part of building (n) ➜
Links to other resources
- umbel.org /umbel/sc/AirVentSystem
- sw.opencyc.org /2012/05/10/concept/en/AirVentSystem