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变度 variant 变式 : 28 phrases in 12 subjects |
| Automobiles | 1 |
| Aviation | 1 |
| Compressors | 1 |
| Construction | 1 |
| Electronics | 3 |
| General | 2 |
| Information technology | 1 |
| Metallurgy | 1 |
| Oil / petroleum | 1 |
| Space | 1 |
| Technology | 13 |
| Water resources | 2 |
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