Though they actually exist only as simulations in software, they can be thought of as physical layers of nodes.
尽管它们实际上只作为软件中的模拟而存在，但它们可以被视为节点的物理层。
| 单词 | Physical layer |
| 释义 |
Physical layer
原声例句
经济学人 Science and technology Though they actually exist only as simulations in software, they can be thought of as physical layers of nodes. 尽管它们实际上只作为软件中的模拟而存在，但它们可以被视为节点的物理层。 科技 Crash Course MAC addresses, collision detection, exponential backoff and similar low level protocols that mediate access to the physical layer are part of the Data Link Layer. MAC 地址、冲突检测、指数退避和调解对物理层的访问的类似低级协议是数据链路层的一部分。
中文百科
物理层物理层（Physical Layer）是计算机网络OSI模型中最低的一层。物理层规定:为传输数据所需要的物理链路创建、维持、拆除，而提供具有机械的，电子的，功能的和规范的特性。简单的说，物理层确保原始的数据可在各种物理媒体上传输。 局域网路与广域网络皆属第1、2层。
英语百科
Physical layer 物理层In the seven-layer OSI model of computer networking, the physical layer or layer 1 is the first and lowest layer. The implementation of this layer is often termed PHY. The physical layer consists of the basic networking hardware transmission technologies of a network. It is a fundamental layer underlying the logical data structures of the higher level functions in a network. Due to the plethora of available hardware technologies with widely varying characteristics, this is perhaps the most complex layer in the OSI architecture. |
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