- waste-gas damper
- 废气: exhaust gas; discharge gas; ...
- 气闸: air brake; man lock; gas lock; damper plate
- 废气: exhaust gas; discharge gas; waste gas [steam]; flue gas; tail gas; off gas; vapours; exhaust steam 排出废气 exhale the waste gas
- 煤气闸: gas lock
- 排气闸: exhaust brake
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