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| minimum spacings; minimum-distance | |||
| minimum separation | |||
| minimum interval; minimum spacing | |||
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最小间隔 : 25 phrases in 10 subjects |
| Air defense | 1 |
| Aviation | 5 |
| Computer networks | 1 |
| Electronics | 1 |
| General | 1 |
| Information technology | 2 |
| Polygraphy | 1 |
| Rail transport | 1 |
| Technology | 9 |
| Telecommunications | 3 |
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