1592953353000 1312632483000 term-46416 1616541459562 1312632539000 1616290391062 adlib fitz-online adlib-term-46416 c0640cbb-d059-309d-a472-6657c3eddef3 2 1 scope note That part of a ventilation system which includes supply and return air ducts and plenum chambers. STEIN reference term-46415 adlib-term-46415 a405bcc5-97f3-3f64-8bd5-3256aa276708 air distribution system V.PJ.AFU.ALO.AFU.ALO.ARI.ALO 1 code V.PJ.AFU.ALO.AFU.ALO.ARI.ALO 1 air distribution systems reference term-46447 adlib-term-46447 483f7450-551c-35b6-bce0-29e7c8505e11 <ventilation system components> air distribution systems term