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air ductDucts typically made of sheet metal that carry cooled or heated air to all rooms.
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air ductDucts, usually made of sheet metal, that carry cooled air to all rooms.
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air ductA tube or conduit moving air from one place to another.
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air duct A hollow conduit or tube (square or round) that circulates air from a forced-air heating and/or cooling system to a room (supply duct) or returns air back to the main system from a room (return duct [..]
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air ductA tube or conduit for conveying air from one place to another.
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