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| automatic switching system | |||
| 自动交换系统: 38 phrases in 13 subjects |
| Aviation | 4 |
| Business | 4 |
| Earth sciences | 1 |
| Electronics | 14 |
| Exhibitions | 1 |
| Information technology | 1 |
| International Monetary Fund | 1 |
| Mathematics | 1 |
| Shipbuilding | 1 |
| Space | 4 |
| Technology | 2 |
| Telecommunications | 3 |
| Wind Energy | 1 |
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