小其妈妈工作室正在招生~~~~~~~~~

发表时间: 2008-10-25 21:01    作者: 麦田单车    来源: 望京社区

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我也来说两句 查看全部评论 相关评论

• chongzizj8 (2008-12-11 08:36:48)

  闸阀就是我们见到的有一个圆盘开的那种，当旋转圆盘时里面的闸就会动作，从而达到开关的作用。而气动蝶阀它的里面有一个可以转动的蝶，你转动手柄时<a href="http://www.samsonshanghai.com/index.html">气动蝶阀</a>就会启动。两者都因其结构而得名的

• boni73 (2008-12-27 03:31:06)

  哈，不错！很赞！  ------ Amanda (jordan 6).

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• ijkl636 (2009-1-06 10:32:46)

  路过，支持一个！   呵呵~
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
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