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| Subject | English | Russian |
| gen. | natural smoke exhaust system | система естественного дымоудаления (Alexander Demidov) |
| fire. | natural smoke exhaust ventilation system | вытяжная противодымная вентиляции с естественным побуждением (The design of a natural smoke exhaust ventilation system should aim to position the neutral pressure plane above the openings in the atrium enclosure. (Health Facilities Scotland) vatnik) |