One characteristic of HDR is that it USES a half duplex communication protocol and thus is sensitive to network latency.
HDR的一个特点是它使用半双工通信协议，因此对网络延迟非常敏感。
This protocol is based on Stop-and-Wait protocol and it is suitable for half-duplex communication.
该协议基于停等协议，适用于半双工通信方式。
This protocol is based on Stop-and-Wait protocol and it is suitable for half-duplex communication.
该协议基于停等协议，适用于半双工通信方式。
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