| 摘要 |
A refrigerated trailer 10 which is subject to having a restricted normal return air flow path back to the refrigeration unit 24 through the suction space 46 in communication with the return air inlet 34 of the unit, due to volume and arrangement of the load 42, is provided with secondary air return ducts 48 and 50 which are also in communication with the suction space 46 to ensure an adequate return air flow to the unit and thereby also assuring an adequate discharge of air to the rear 22 of the trailer.
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