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クラス : 108 phrases in 10 subjects |
| Chemistry | 2 |
| Communications | 1 |
| Construction | 1 |
| Information technology | 1 |
| Metallurgy | 1 |
| Mineralogy | 1 |
| Rail transport | 1 |
| Shipbuilding | 1 |
| Technology | 97 |
| Television | 2 |
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