| 摘要 |
PROBLEM TO BE SOLVED: To provide an openable roof capable of adjusting daylighting and ventilation continuously and automatically. SOLUTION: This is a field 1 and there are auditoriums 3 surrounding the field 1 around. A roof 2 hangs over the auditoriums 3 in such a way as to surround the field 1. The roof 2 has a plurality of roof panels 4 opened and closed by rotating about a rotation axis in the circumferential direction of the field 1. The opening and closing angle of each roof panel 4 can be adjusted continuously and automatically according to the height of the sun.
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