... duplex radio telephony 双工无线电话 duplex repeater 双工转发器 duplex sound track 双（锯齿）声带 ...
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Telegraph repeater. One-way simplex, two-way simplex, or duplex operation can be specified.
电报中继器。可指定为单向单工、双向单工或双工运行。
Each antenna can be configured for simplex or duplex operation, allowing the system to also be operated as an airborne microwave repeater.
每个天线，可配置为单操作或双面，使系统也将微波营运，空降中继器。
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