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多种形式 : 16 phrases in 10 subjects |
| Automated equipment | 1 |
| Business | 1 |
| China | 3 |
| Commerce | 2 |
| Economy | 2 |
| General | 1 |
| Quality control and standards | 1 |
| Securities | 1 |
| Space | 1 |
| Technology | 3 |
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