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扩探 : 18 phrases in 11 subjects |
| Agriculture | 1 |
| Drilling | 1 |
| Ecology | 2 |
| Electronics | 2 |
| Engineering geology | 1 |
| General | 2 |
| Nuclear physics | 1 |
| Nursing | 1 |
| Otorhinolaryngology | 1 |
| Surgery | 1 |
| Technology | 5 |
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