physical layer

基本解釋

Understanding that it sits between the application layer and the physical layer should help you understand why it is arguably the most important of all the layers.
了解它位于應(yīng)用程序?qū)雍臀锢韺又g，應(yīng)該可以幫助您理解它為什么很可能是所有層中最重要的一層。
When first setting up your systems, start from the bottom (the physical layer) as you configure your disk, the device layer, its logical volumes, file systems, and the files and application.
在第一次設(shè)置系統(tǒng)時(shí)，對(duì)于磁盤的配置，可以從最底層（物理層）開始，然后是設(shè)備層、邏輯卷、文件系統(tǒng)、文件和應(yīng)用程序。
Even your physical volumes themselves are part of the logical layer, as the physical layer only encompasses the actual disks, device drivers, and any arrays that you might have already configured.
甚至物理卷本身也是邏輯層的一部分，因?yàn)槲锢韺觾H包含實(shí)際的磁盤、設(shè)備驅(qū)動(dòng)程序和任何可能配置的陣列。

It features a simple interface and the physical key requirement provides an additional layer of security that avoids using a vendor's redirection service such as those offered by Cloud Engines for PogoPlug or Axentra for Netgear's Stora.
ENGADGET: Switched On: MyDitto NAS has some key issues

物理層
IEEE 802.16d employs OFDM as mandatory modulation mechanism at physical layer.
IEEE 802.16d物理層采用OFDM作為主要的調(diào)制方法。
實(shí)體層

物理層
This paper studies a generation method of Random Access(RA) signal in physical layer of the Long-Term Evolution(LTE) system.
提出一種適用于長(zhǎng)期演進(jìn)系統(tǒng)的物理層隨機(jī)接入信號(hào)產(chǎn)生方法。
實(shí)體層
Typical hierarchical structure design, the system is divided into data access layer, business logic layer, physical layer and entity layer. Application will learn emotional guidance to a simple teaching system.
該系統(tǒng)原型采用典型的分層結(jié)構(gòu)設(shè)計(jì),包括數(shù)據(jù)訪問層、業(yè)務(wù)邏輯層、實(shí)體層和表示層。
機(jī)械工程
物理層