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| 环醚: 65 phrases in 11 subjects |
| Agriculture | 1 |
| Chemistry | 15 |
| General | 9 |
| Metallurgy | 1 |
| Perfume | 7 |
| Pharmacology | 17 |
| Plastics | 1 |
| Polymers | 3 |
| Reproductive biology | 2 |
| Space | 2 |
| Technology | 7 |
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