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| 建筑中的使用面积 | |||
| 建筑使用面积 | |||
| 使用面积 | |||
| 房屋使用面积 | |||
| 可用地板面积 | |||
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usable floor area : 4 phrases in 3 subjects |
| Economy | 1 |
| Engineering geology | 2 |
| Technology | 1 |
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