标准摘要
[中文适用范围]： 目的是指定概念物理服务的特征，从而补充 OSI 基本参考模型以指导物理层协议的开发。 [外文原描述]： The purpose is to specify the characteristics of a conceptual Physical service and thus supplement the OSI Basic Reference Model in guiding the development of Physical Layer protocols.
英文名称Information technology - Open Systems Interconnection - Physical Service Definition