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| Chinese | English |
| 低中频的 | low and medium frequency |
| 低电平电流型逻辑电路 | low level current mode logic (circuit) |
| 低频扼流圈抗流圈 | low-frequency choke |
| 最低可用频率高频 | lowest useful high frequency |
| 极低频 | extra-low frequency |
| 甚低频 VLF | very-low frequencies (3 千赫 ~ 30 千赫) |
| 自动低音补偿 | automatic bass compensation |