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综合维修 : 30 phrases in 10 subjects |
| Agriculture | 2 |
| Aviation | 11 |
| Communications | 1 |
| Economy | 1 |
| Electronics | 2 |
| General | 1 |
| Navigation | 2 |
| Rail transport | 6 |
| Space | 3 |
| Technology | 1 |
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