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 <title><![CDATA[一个思考题大家帮我分析下]]></title>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-90389.html]]></link>
 <description><![CDATA[Latest 50 replies of 一个思考题大家帮我分析下]]></description>
 <copyright><![CDATA[Copyright(C) 工控人家园]]></copyright>
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 <lastBuildDate><![CDATA[Tue, 14 Apr 2026 21:16:31 +0000]]></lastBuildDate>
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 <title><![CDATA[工控人家园]]></title>
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 <description><![CDATA[工控人家园]]></description>
  </image>
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 <title><![CDATA[]]></title>
 <description><![CDATA[[s:21]&nbsp;&nbsp;[s:21]]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-90389#929604.html]]></link>
 <author><![CDATA[lv123]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Mon, 13 Dec 2010 11:48:43 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[我设计的是一个脚踏开关，也是一个保险，丝印机用的]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-90389#929601.html]]></link>
 <author><![CDATA[乐博]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Mon, 13 Dec 2010 11:45:59 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[你直接用带锁的按钮不就可以了，按一下接触，再按一下断开了]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-90389#929562.html]]></link>
 <author><![CDATA[dreamboy5241]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Mon, 13 Dec 2010 11:20:43 +0000]]></pubdate>
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<item>
 <title><![CDATA[]]></title>
 <description><![CDATA[怎么老说这个新问题]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-90389#929383.html]]></link>
 <author><![CDATA[waitfor]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Mon, 13 Dec 2010 08:24:56 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[感谢１４楼的好评．只不过图是画在纸上，用手机拍的不是十分清楚]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-90389#929354.html]]></link>
 <author><![CDATA[sxxdk]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Mon, 13 Dec 2010 07:28:29 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[3楼对继电器的运用很有成果，]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-90389#929211.html]]></link>
 <author><![CDATA[北方]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Mon, 13 Dec 2010 05:35:33 +0000]]></pubdate>
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<item>
 <title><![CDATA[]]></title>
 <description><![CDATA[学习 学习]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-90389#929153.html]]></link>
 <author><![CDATA[人生如梦]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Mon, 13 Dec 2010 04:40:45 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[自锁按钮，按一下，接通，再按一下，断开，不需要其他东西了，一个按钮，一个接触器，搞定]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-90389#928978.html]]></link>
 <author><![CDATA[njaolian]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Mon, 13 Dec 2010 02:11:24 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[[quote]引用第4楼360820于2010-12-12 10:44发表的&nbsp;&nbsp;:
[s:21]
[/quote]
楼主要求是常开按钮，SB1是常开按钮可以吗？]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-90389#928681.html]]></link>
 <author><![CDATA[吴德星]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Sun, 12 Dec 2010 14:13:30 +0000]]></pubdate>
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<item>
 <title><![CDATA[]]></title>
 <description><![CDATA[学习了]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-90389#928660.html]]></link>
 <author><![CDATA[ztsea]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Sun, 12 Dec 2010 13:59:57 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[参考我以前发的
[url]http://www.ymmfa.com/read-gktid-4942.html[/url]
可以选择其中的一些图来用。]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-90389#928654.html]]></link>
 <author><![CDATA[fjqz00]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Sun, 12 Dec 2010 13:50:44 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[同意六楼]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-90389#928592.html]]></link>
 <author><![CDATA[1120795098]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Sun, 12 Dec 2010 12:52:00 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[谢谢了]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-90389#928509.html]]></link>
 <author><![CDATA[乐博]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Sun, 12 Dec 2010 11:45:44 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[用三个继电器实现互锁就好啦]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-90389#928140.html]]></link>
 <author><![CDATA[lichun518518]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Sun, 12 Dec 2010 04:37:03 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[LZ 有一种自锁的按钮是这样的！]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-90389#928139.html]]></link>
 <author><![CDATA[wxlwxswnn]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Sun, 12 Dec 2010 04:35:01 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[[s:21]]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-90389#928078.html]]></link>
 <author><![CDATA[360820]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Sun, 12 Dec 2010 02:44:20 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[一个常开按钮，按下去开再按一下关，只能用继电器]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-90389#928062.html]]></link>
 <author><![CDATA[sxxdk]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Sun, 12 Dec 2010 02:27:01 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[2个继电器，，，一个时间继电器]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-90389#928013.html]]></link>
 <author><![CDATA[孙发明]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Sun, 12 Dec 2010 01:30:36 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[用两个继电器互锁,继电器要点多的那种]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-90389#927876.html]]></link>
 <author><![CDATA[kiz123]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Sat, 11 Dec 2010 15:24:22 +0000]]></pubdate>
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