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叠合 : 68 phrases in 15 subjects |
| Automobiles | 1 |
| Bridge construction | 1 |
| Chemistry | 2 |
| Construction | 2 |
| Electronics | 2 |
| General | 16 |
| Geology | 3 |
| Mathematics | 4 |
| Medical | 13 |
| Nautical | 1 |
| Oil and gas | 1 |
| Oil processing plants | 3 |
| Polymers | 1 |
| Shipbuilding | 1 |
| Technology | 17 |
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