半双工

例句：

1. 1. The company uses a half-duplex communication system for its internal communications.
   该公司使用半双工通信系统进行内部通信。
2. 2. In the case of a half-duplex network, each station can communicate with only one otherstation at a time.
   在半双工网络中，每个站只能同时与另一个站通信。
3. 3. The half-duplex switch allows for simultaneous transmission and reception on both sides of the line.
   半双工交换机允许线路的两侧同时发送和接收信号。