| 摘要 |
PROBLEM TO BE SOLVED: To provide a cooler of a defrosting device for reducing a device cost and being safely used. SOLUTION: In a plate-fin tube type cooler 1 in which a large number of cooling tubes 3a, 3b...3n penetrate through a plate-fin group with a large number of plate-fins 2a, 2b...2n disposed at predetermined intervals, heating tubes 7a, 7b...7n separately independent from the cooling tubes 3a, 3b...3n are provided penetrating through the plate-fin group. COPYRIGHT: (C)2004,JPO
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