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| 発光体 (hakkōtai); 光体 (kōtai) | |||
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luminous : 34 phrases in 7 subjects |
| Construction | 1 |
| General | 4 |
| Lighting other than cinema | 9 |
| Physics | 3 |
| Radio | 1 |
| Technology | 14 |
| Vacuum tubes | 2 |
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