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抽 样品 : 29 phrases in 13 subjects |
| Agriculture | 2 |
| Automobiles | 2 |
| Business | 4 |
| China | 1 |
| Commerce | 2 |
| Economy | 7 |
| Laboratory equipment | 1 |
| Mathematics | 1 |
| Oil / petroleum | 2 |
| Quality control and standards | 1 |
| Space | 1 |
| Technology | 3 |
| Textile industry | 2 |
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