| 摘要 |
PROBLEM TO BE SOLVED: To provide a fish bank, exhibiting gathering effects at an early time, capable of maintaining the gathering effect for a long period, and formed out of at least concrete and wood. SOLUTION: The fish bank comprises at least the concrete and the wood. A part of the outer wall face is composed of the wood, and the fish bank is constituted so that no protruded part of the outer wall composed only of the wood may be present therein. The surface of the wood is carbonized. COPYRIGHT: (C)2004,JPO
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