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双 氮 : 74 phrases in 14 subjects |
| Chemistry | 17 |
| Electronics | 3 |
| General | 11 |
| Nursing | 1 |
| Oil / petroleum | 2 |
| Pharmacology | 20 |
| Plastics | 1 |
| Polygraphy | 2 |
| Polymers | 4 |
| Refrigeration | 1 |
| Reproductive biology | 1 |
| Space | 3 |
| Technology | 4 |
| Textile industry | 4 |
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