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This post was last edited by hjztbwg on 2015-11-19 at 13:51. Smoke extraction is divided into two forms: __mechanical smoke extraction__ and __natural smoke extraction__.
It is divided into two methods: mechanical smoke exhaust and natural smoke exhaust
Smoke exhaust is divided into two forms: mechanical exhaust and natural exhaust.
Natural smoke exhaust and mechanical smoke exhaust
Smoke exhaust is divided into two types: local smoke exhaust and centralized smoke exhaust
Smoke exhaust is divided into two forms: ______mechanical smoke exhaust and natural smoke exhaust_____.
Smoke exhaust is divided into two forms: (mechanical smoke exhaust) and (natural smoke exhaust)