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| |||
| 时间段; 时间间断 | |||
| 时间范围; 时间量程 | |||
| 时间间隔 | |||
| time range: 37 phrases in 11 subjects |
| Air defense | 1 |
| Aviation | 2 |
| Electronics | 7 |
| Explosives and Explosive Ordnance Disposal | 3 |
| Geophysics | 1 |
| Metallurgy | 1 |
| Multimedia | 1 |
| Nuclear physics | 1 |
| Power system protection | 1 |
| Space | 7 |
| Technology | 12 |
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