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定位稳定性 : 17 phrases in 9 subjects |
| Business | 1 |
| Desert science | 1 |
| Ecology | 2 |
| Economy | 1 |
| Electronics | 1 |
| Finances | 1 |
| Oil / petroleum | 1 |
| Polymers | 1 |
| Technology | 8 |
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