数据: data; record; information链路: chain circuit; periodic line ...层: I storey; tier; stratum方式: way; fashion; pattern接入: insert; join up; switch on; ...协议: agree on无线数据链路接入协议: rd - la链路接入协议方式: lapm link access protocol model数据链路层: data link (layer) dl; data link layer(dll); data-link layer; datalink; dll:data link layer; layer, data link数据链路层协议数据单位: data link layer protocol data unit链路接入协议一平衡方式: lapb链路接入协议: irlairda link access protocol irda; lalink access protocol; lapb link access protocol-balanced; link access procedure for modem平衡链路接入协议: link access protocol balanced通道链路接入协议: link access protocol for d channel lapd模型数据链路层: data link layer osi model osi面向比特型数据链路层协议: hdlc数据链路协议: data link layer protocol; data link protocol digital units; sdl数据链路层服务数据单位: data link layer service data unit均衡式链路接入协议: lapb link access procedure balanced管理实体与数据链路层: mdl management entitiy and data link layer面向比特型数据链路层协: hdlc数据链路层服务访问点: data link layer service access point数据链路层管理实体: data link layer management entity数据链路层连接末端: data link layer connection endpoint物理层数据链路层网络层: physical data link network layer