 |
| |||
| 被调制信号 | |||
| 调制信号; 已调信号 | |||
| 已调制信号 | |||
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modulated signal : 25 phrases in 5 subjects |
| Air defense | 8 |
| Electronics | 5 |
| Technology | 10 |
| Telecommunications | 1 |
| Wind Energy | 1 |
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