The technique performance of the physics layer of AIS requests using the NRZI codes.
AIS无线传输的技术性能里要求物理层对比特流进行NRZI编码。
But the physics layer of some small hand-hold equipments can not provide carrier sense.
但在一些以小型手持设备为终端的自组网应用系统中物理层无法提供载波感知。
The reticular topology optimization design was adopted for physics layer to integrate military facility in combat zone.
物理层采用网状拓扑优化设计，将作战区域内各武器装备有机整合。
The media access control (MAC) protocol of mobile Ad Hoc networks (MANETs) is closely-related with its physics layer, most MAC protocols request the capability of carrier sense in physical layer.
无线自组网的介质访问控制(MAC)协议是与物理层密切相关的，大多数MAC协议都要求物理层具备载波感知能力。
These special flow phenomena have been ex-plained in physics and mechanics by means of boundal layer theory.
综合应用边界层等理论给出这些特殊渗流现象的物理和力学解释。
The first is "the change of physics"on the layer of nature;
一是自然层面上的“物理之变”；
We divide the whole system into three layers: physics story, chain way layer and uses story in communication.
把整个系统分为三层：物理层，通信链路层和应用层。
We divide the whole system into three layers: physics story, chain way layer and uses story in communication.
把整个系统分为三层：物理层，通信链路层和应用层。
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