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| 照明区 (域) | |||
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light area : 17 phrases in 9 subjects |
| Agriculture | 1 |
| Architecture | 1 |
| Aviation | 2 |
| Bridge construction | 1 |
| Computers | 1 |
| Electronics | 1 |
| Lighting other than cinema | 1 |
| Metallurgy | 1 |
| Technology | 8 |
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