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死 管 : 21 phrases in 10 subjects |
| Agriculture | 1 |
| Dermatology | 6 |
| Drilling | 2 |
| Electronics | 1 |
| General | 1 |
| Nursing | 1 |
| Oil / petroleum | 2 |
| Otorhinolaryngology | 2 |
| Reproductive biology | 1 |
| Technology | 4 |
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