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| positive vector | |||
| 正 向量: 30 phrases in 11 subjects |
| Bridge construction | 1 |
| Business | 2 |
| Cartography | 1 |
| Construction | 1 |
| Electronics | 3 |
| Mathematics | 1 |
| Oil / petroleum | 3 |
| Securities | 1 |
| Space | 3 |
| Sports | 1 |
| Technology | 13 |
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