| Subject | English | Chinese |
| refrig. | data link/physical layer | 数据链层/物理层 |
| proj.manag. | OSI/RM classify the structure of the network into application layer, presentation layer, session layer, transport layer, network layer, data link layer and physical layer | OSI/RM 将计算机网络体系结构划分为应用层、表示层、会话层、传输层、网络层、数据链路层和物理层七个层次 |
| comp., net. | physical data layer | 物理数据层 |
| comp., net. | physical data link layer | 物理数据链路层 |
| comp., net. | physical data link network layer | 物理数据链路网络层 |
| comp., net. | single physical layer user data switching platform architecture network | 单物理层用户数据交换平台的体系结构网络 |
| comp., net. | single physical layer user-data switching platform architecture network | 单物理层用户数据交换平台的体系结构网络 |