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闭 路 : 403 phrases in 31 subjects |
| Astronautics | 2 |
| Automated equipment | 2 |
| Aviation | 3 |
| Business | 3 |
| Chemistry | 1 |
| Cinematography | 1 |
| Computers | 6 |
| Ecology | 1 |
| Education | 1 |
| Electricity | 5 |
| Electronics | 74 |
| Energy industry | 1 |
| General | 123 |
| Hydrography | 1 |
| Information technology | 1 |
| Mathematics | 1 |
| Military | 3 |
| Mining | 2 |
| Nautical | 7 |
| Navy | 1 |
| Nuclear and fusion power | 1 |
| Occupational health & safety | 2 |
| Oil / petroleum | 1 |
| Oil and gas | 1 |
| Oil processing plants | 4 |
| Quality control and standards | 1 |
| Radio | 2 |
| Rail transport | 8 |
| Scientific | 1 |
| Technology | 142 |
| Telecommunications | 1 |
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