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| 数据集中分配器 | |||
| 数据集中设备 | |||
| 数据汇集器 | |||
| 数据集中器 | |||
| data concentrator: 12 phrases in 6 subjects |
| Aviation | 7 |
| Computers | 1 |
| Electronics | 1 |
| Geophysics | 1 |
| Information technology | 1 |
| Telecommunications | 1 |
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