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| OR-to-OR circuit | |||
| 或或" 电 路: 36 phrases in 14 subjects |
| Agriculture | 1 |
| Air defense | 2 |
| Automobiles | 1 |
| Computers | 3 |
| Economy | 1 |
| Electronics | 11 |
| General | 5 |
| Geophysics | 1 |
| Health care | 2 |
| Information technology | 2 |
| Lighting other than cinema | 1 |
| Metallurgy | 3 |
| Project management | 2 |
| Technology | 1 |