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解释OSI模型定义的网络层？
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解释OSI模型定义的网络层？
时间：2021-12-31 20:01
关键词：
机电一体化系统设计
机械工程
大学试题
工学
答案解析
网络层也称分组层。任务是是网络传输分组。规定了分组在网络中是如何传输的。网络层控制网络上信息的切换和路由选择，因此，本层要为数据从源点到终点建立物理和逻辑的连接。
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boost的意思是:help or encourage to increase or improve
eloquent的意思是:fluent or persuasive in speaking or writing
A campus emergency ______ occur at any time of the day or night, weekend, or holiday, with little or no warning.
试述在机电一体化系统设计中，系统模型建立的意义。
解释OSI模型定义的网络层？
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解释OSI模型定义的传输层？
Mainly east 3 or 4 partly cloudy to overcast occasional rain（）slowly south moderate or good.
（）any case or suspected case of quarantinable disease，or any case of eruptive disease or any death be discovered，the local quarantine officer must be notified immediately．
Should any case or suspected case of quarantinable disease，or any case of eruptive disease or any death be discovered，the local Quarantine Officer must be（）immediately.
OSI/RM是ISO在网络通信方面所定义的开放系统互连模型。OSI模型共分为7层
Masters are（）solely responsible for all damages or accidents of whatever kind resulting from the navigating or handling of their vessels by day or by night.
系统中雷达状态包括Unknown、Operational（or ON）、Failed（or OFF）、Detached。
Owners are to be responsible for loss of or damage to the goods or delay in delivery of the goods only in case the loss，damage or delay has been caused by the improper or negligent stowage of the goods．This means that（）.
The carrier is liable for loss of or damage to the goods or delay in delivery caused by fire，（）the claimant proves that the fire arose from fault or neglect on the part of the carrier，his servants or agents.
Shutdown price（or point，or rule） 停业价格（或停业点、停业原则）
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