| 字词 | 选频 |
| 释义 | 选频电平表selective level meter选频耳机frequency-selective earphone选频放大器frequency-selective amplifier; frequency-selecting amplifier; selective amplifier选频伏特计frequency-selective voltmeter选频连接器frequency-selecting connector选频器frequency-selector选频网络frequency-selective network选频系统frequency-selective system选频振铃 〖电〗harmonic ringing |
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