| 摘要 |
PROBLEM TO BE SOLVED: To enable to cool a driver's head, etc., by installed a seat-only nozzle on the nozzle branch unit of the air conditioner. SOLUTION: The seat-only nozzle is installed inside the nozzle branch unit of the air conditioner, and a blow-off nozzle above the seat blowing off cool air is installed using a flat insulated duct or an insulated hose in a space between props of a roof or a roof and a ceiling.
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