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| 基准电源; 参比源 | |||
| 参考源 | |||
| 参考工具源 | |||
| 定标源 | |||
| 基准源 | |||
| 标准源 | |||
| reference source: 18 phrases in 10 subjects |
| Commerce | 1 |
| Communications | 1 |
| Electronics | 4 |
| Explosives and Explosive Ordnance Disposal | 1 |
| General | 1 |
| Geophysics | 1 |
| Information technology | 1 |
| Oil / petroleum | 3 |
| Technology | 2 |
| Telecommunications | 3 |
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