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整层 : 46 phrases in 10 subjects |
| Aviation | 1 |
| Construction | 1 |
| Electronics | 5 |
| General | 11 |
| Geology | 15 |
| Microelectronics | 1 |
| Oil / petroleum | 1 |
| Oilfields | 1 |
| Technology | 9 |
| Wood processing | 1 |
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