Dhaqdhaqaaqayaasha damper-ka degdega ah ayaa si gaar ah loo qaabeeyey loona soo saaray codsiyada nidaamyada HVAC. SOLOON hawl-wadeenno tayo sare leh ayaa loo qaabeeyey in lagu isticmaalo hawo hawo si degdeg ah u ordaaysa iyo codsiga valve valve. Iyada oo koontaroolka furan/ dhow ama habaynta, si weyn loogu isticmaalo shaybaarrada iyo meelaha kale ee xasaasiga ah.
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