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| 素書き; 素描き; 素書; 素描 | |||
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line : 23 phrases in 7 subjects |
| Computers | 5 |
| General | 4 |
| Lighting other than cinema | 1 |
| Physics | 5 |
| Radio | 1 |
| Superconductivity | 6 |
| Technology | 1 |
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