搜索 - 科创

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qwe 发表于 2014-2-6 21:06 lz出吗怎么说，易趣上有的。就是只卖给美国本土的。加运费0.25元每焦。 aerostor 22000vdc高能量放电电容器通过Aerovox We h...

引用第20楼虎哥于2012-01-21 00:51发表的 Re:Re:回 14楼(虎哥) 的帖子 :这个说法不正确。靠修剪天线来适应阻抗无异于削足适履，仅用于一些简单场合（比如业余级别的窄带天线），修...

继续ESMB如果配置了短波选件，那么将增加两张电路板，一张是预选器，一张是前端（包括一、二混频）。首先是预选器可见由继电器组成的衰减器组（左侧），然后经pin管开关分配成两路，一路进4通道预选器，另一...

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