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| 接收信号的; 信号输人的 | |||
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signal -receiving : 18 phrases in 8 subjects |
| Air defense | 1 |
| Communications | 3 |
| Electronics | 2 |
| General | 3 |
| Rail transport | 3 |
| Space | 1 |
| Technology | 4 |
| Telecommunications | 1 |
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