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材料库 : 77 phrases in 17 subjects |
| Aviation | 5 |
| Business | 12 |
| Commerce | 4 |
| Compressors | 1 |
| Computer numerical control | 1 |
| Drilling | 1 |
| Economy | 3 |
| Electronics | 2 |
| Finances | 1 |
| Management | 9 |
| Metallurgy | 4 |
| Oil / petroleum | 3 |
| Project management | 1 |
| Rail transport | 1 |
| Space | 1 |
| Technology | 25 |
| Textile industry | 3 |
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