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电平控制 : 48 phrases in 14 subjects |
| Air defense | 2 |
| Automobiles | 3 |
| Aviation | 4 |
| Communications | 1 |
| Electronics | 14 |
| General | 3 |
| Geophysics | 5 |
| Information technology | 1 |
| Metallurgy | 1 |
| Nautical | 1 |
| Space | 3 |
| Technology | 8 |
| Telecommunications | 1 |
| Textile industry | 1 |
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