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| 测试与操作 | |||
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| 试验与操作 | |||
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test and operations : 17 phrases in 7 subjects |
| Aviation | 6 |
| Electronics | 3 |
| Information technology | 1 |
| Shipbuilding | 1 |
| Space | 3 |
| Technology | 1 |
| United States | 2 |
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