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| 光测定 | |||
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| 光度学 | |||
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light measurements : 12 phrases in 7 subjects |
| Agriculture | 3 |
| Economy | 1 |
| International trade | 1 |
| Lighting other than cinema | 1 |
| Plastics | 1 |
| Technology | 4 |
| United Nations | 1 |
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