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| 自动交换中心 | |||
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| 自动交［转］换中心 | |||
| 自动转换中心 | |||
| automatic switching center: 22 phrases in 7 subjects |
| Aviation | 3 |
| Earth sciences | 1 |
| Electronics | 3 |
| Information technology | 2 |
| Management | 1 |
| Space | 7 |
| Technology | 5 |
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