| 摘要 |
PROBLEM TO BE SOLVED: To maintain the sealing performance of a washing tub with a hollow packing with a simple constitution in a preferable state. SOLUTION: This dish washer is constituted by feeding (supplying) air into a hollow packing 129 through the operation of an air pump at predetermined intervals in an air pump unit 140 and supplying air when water feeding is finished. COPYRIGHT: (C)2003,JPO
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