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理想 性 : 30 phrases in 10 subjects |
| Electronics | 2 |
| General | 11 |
| Geology | 3 |
| Mathematics | 1 |
| Military | 1 |
| Nanotechnology | 1 |
| Oil and gas | 1 |
| Oil processing plants | 1 |
| Polymers | 1 |
| Technology | 8 |
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