negative frequency
| modulation
| negative frequency abbr. | |
| wind. | 负频率 |
| modulation abbr. | |
| econ. | 调整; 调节 |
| life.sc. | 适应; 调动 |
| life.sc. од. | 调变 |
| met. | 转调; 变换; 缓和 |
| met. од. | 调制 |
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| 负频率 | |||
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negative frequency : 6 phrases in 3 subjects |
| Air defense | 1 |
| Electronics | 3 |
| Technology | 2 |