| 摘要 |
PROBLEM TO BE SOLVED: To provide an aquarium variable in water level with a simple construction. SOLUTION: The aquarium 10 includes a body flat plate 11 spanned across the space between both of the sidewalls 16 and 17 at the corner 10a and a sliding door part 14 to be allowed to slide left and right along the body flat plate 11. In this aquarium, the body flat plate 11 is inclinedly furnished with an open window 15, its opening degree being regulated depending on the slide position of the sliding door part 14. Depending on the opening degree, the position of the bottom end of the window 15 is varied(S<SB>2</SB>), resulting in varying water level. COPYRIGHT: (C)2007,JPO&INPIT
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