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| 通电时间 | |||
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electric time : 17 phrases in 9 subjects |
| Air defense | 1 |
| Aviation | 1 |
| Communications | 1 |
| Electric machinery | 3 |
| Electronics | 3 |
| Explosives and Explosive Ordnance Disposal | 1 |
| Geophysics | 1 |
| Shipbuilding | 2 |
| Technology | 4 |
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