... both way junction circuit 双向局间中断电路... both way trunk 双路中继线路... service both way circuit 双向业务电路...
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both-way trunk line [通信] 双向中继线 ; 双向中断线
both-way trunk circuit 双向中继器
both-way trunk 双向中继线
both way trunk circuit 双向中继器
international both way trunk 国际双向中继线
both way toll trunk circuit 长途双向中继电路
trunk both-way 双向中继线
both-way toll trunk circuit 长途双向中继电路
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