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| 维护数据; 运行数据; 技术资料 | |||
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service date : 16 phrases in 9 subjects |
| Automobiles | 1 |
| Aviation | 2 |
| Business | 2 |
| China | 1 |
| Electronics | 2 |
| Information technology | 1 |
| Space | 4 |
| Technology | 2 |
| Telecommunications | 1 |
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