| 摘要 |
PROBLEM TO BE SOLVED: To provide a swimming cap designed to prevent water from entering the earhole by a simple means. SOLUTION: This swimming cap is so designed that each of ear-covering parts represents a double structure made up of surface wall 2 and reverse wall 3 each with many perforations 4 or 4' and a down 1 is filled in the space between the walls 2 and 3.
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