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| continuous signal | |||
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连 续信号 : 27 phrases in 11 subjects |
| Air defense | 9 |
| Automatic control | 2 |
| Aviation | 2 |
| Communications | 2 |
| Electronics | 4 |
| Information technology | 1 |
| International trade | 1 |
| Oil / petroleum | 1 |
| Shipbuilding | 1 |
| Technology | 2 |
| Telecommunications | 2 |
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