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cold vent pits (Dzhem) | |||
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off-gas stack (igisheva) | |||
blowing shaft | |||
vent (на скважине подземного газогенератора) | |||
vent (Bauirjan) | |||
pipe riser (nastyavk) | |||
vent stack | |||
cold vent; cold vent stack | |||
gas vent |
продувочные свечи : 4 phrases in 3 subjects |
Construction | 1 |
Oil and gas technology | 2 |
Weapons of mass destruction | 1 |