HDLC是一种面向比特的链路控制规程，广泛用作数据链路层的控制协议。

HDLC, which is widely applied to control protocol of Data Link Layer, is based on bit.

youdao

HDLC是一种面向比特的链路控制规程，广泛用作数据链路层的控制协议。

HDLC, which is widely applied to control protocol of Data Link Layer, is based on bit.

youdao