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| 购入的原材料 | |||
| 已购资源 | |||
| purchased materials: 18 phrases in 8 subjects |
| Aviation | 1 |
| Business | 7 |
| Economy | 2 |
| International trade | 1 |
| Management | 3 |
| Nautical | 1 |
| Technology | 1 |
| Textile industry | 2 |
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