ventiduct

n.

通风管；

Ventiduct Cleaning Robot for Central Air Conditioning
The Design of Ventiduct-detecting Robot
Design of A New Typed Ventiduct Cleaning Robot for Central Air Conditioning
The Study for the Sedimentation Rule of Dust in Ventiduct
Deformation Characteristics of Ventiduct Embankment on Qinghai-Tibet Railway
Active noise control system of practical ventiduct and its implemention
The optimization of the ventiduct layout of air conditioning of barn using CFD simulation
Experimental Study on the Ventiduct Embankment in Permafrost Regions of the Qinghai-Tibet Railroad
Air intake system of circular cooler and its annular ventiduct and sealing cover plate
Mechanism Desing of Cleaning Robot for Center Air Conditioning Vertical Ventiduct