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| English | Russian |
| plenum system | приточная система вентиляции (a system of ventilation based on the mechanical propulsion of air into the room. Found on  encyclo.co.uk Alexander Demidov) |
| plenum ventilation system | приточная вентиляционная система (Alexander Demidov) |
| plenum ventilation system | приточная система вентиляции (Alexander Demidov) |