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| фотометрическая шкала | |||
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光度标 : 19 phrases in 8 subjects |
| Astronomy | 1 |
| Electronics | 2 |
| General | 2 |
| Military | 1 |
| Photography | 1 |
| Polymers | 1 |
| Radio | 1 |
| Technology | 10 |
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