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 <title><![CDATA[关于485通讯用法]]></title>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-1469232.html]]></link>
 <description><![CDATA[Latest 50 replies of 关于485通讯用法]]></description>
 <copyright><![CDATA[Copyright(C) 工控人家园]]></copyright>
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 <lastBuildDate><![CDATA[Tue, 05 May 2026 01:19:16 +0000]]></lastBuildDate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[2W半双工，4W全双工]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-1469232#1611568.html]]></link>
 <author><![CDATA[lizhiliang]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Mon, 20 Oct 2014 01:31:33 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[半双工在同一时间内要么接收数据，要么发送数据。而全双工却可以同时接收与发送，大大提高通讯工作效率。]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-1469232#1611492.html]]></link>
 <author><![CDATA[卓发智能]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Sun, 19 Oct 2014 14:08:32 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[一般都会标485-2W,485-4W]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-1469232#1611226.html]]></link>
 <author><![CDATA[静芳]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Sat, 18 Oct 2014 16:24:27 +0000]]></pubdate>
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<item>
 <title><![CDATA[]]></title>
 <description><![CDATA[两线制的是半双工，四线制的是全双工 一般都用两线制]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-1469232#1611225.html]]></link>
 <author><![CDATA[机械电子学徒]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Sat, 18 Oct 2014 16:20:47 +0000]]></pubdate>
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