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F 开头的英语单词（共 143,619 个）
four-wire cable
心电缆
four-wire carrier system
四线载波制
four-wire channel
[计] 四线信道
four-wire circuit
[计] 四线电路
four-wire circuit system
四线电路制
four-wire circuits
four-wire circuit\n【电信学】四线制电路
four-wire extension line adapter
[计] 四线扩展适配器
four-wire line
[计] 四线制线路
four-wire line adapter
[计] 四线线路适配器
four-wire link
[计] 四线线路
four-wire multiplex facilities
四线制多路复用设备
four-wire multiplex facility
[计] 四线制多路复用设备
four-wire repeater
[计] 四线中继器
four-wire repeator
线增音器，四线制强音机
four-wire side circuit
四线实线电路
four-wire subscriber line
【电信学】四线用户线
four-wire switching
四线制交换
four-wire switching center
[计] 四线制交换中心
four-wire switching centre
四线制交换中心
four-wire system
[计] 四线系统
four-wire telephone circuit
四线制电话线路
four-wire terminating set
[计] 四线端接装置
four-wire type circuit
四线式电路
four-wire voice frequency telephone repeater
四线制话频电话中继器
four-wire wye system
四线Y型系统