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| 缝隙: 292 phrases in 32 subjects |
| Antennas and waveguides | 6 |
| Astronautics | 1 |
| Automobiles | 1 |
| Aviation | 3 |
| Biology | 2 |
| Chemistry | 1 |
| Commerce | 1 |
| Construction | 10 |
| Economy | 1 |
| Electronics | 9 |
| Foundry | 1 |
| General | 88 |
| Geology | 3 |
| Marketing | 1 |
| Medical | 2 |
| Metallurgy | 4 |
| Military | 3 |
| Nautical | 1 |
| Nuclear physics | 3 |
| Oil / petroleum | 1 |
| Oil and gas | 1 |
| Oil and gas technology | 1 |
| Oil processing plants | 5 |
| Photography | 2 |
| Radio | 2 |
| Rail transport | 2 |
| Road works | 1 |
| Technology | 131 |
| Telecommunications | 1 |
| Textile industry | 2 |
| Thermal engineering | 1 |
| Welding | 1 |
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