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A Chinese internet technology company unveiled the first satellite in a constellation plan to provide free WiFi service worldwide on Tuesday, followin 阅读全文
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1 射频元件 高频电阻: 高频电容: 高频电感: 2 传输线 a 传输线效应:阻抗,3M法则。 b 同轴线:RF中用 c 微带线: 常用: 1/4变换线 回波损耗:用网络分析仪测量 插入损耗:传输功率和输入功率之比,工程测量可得。 输入阻抗公司: 3 Smith图 a 用ADS仿真即可 b data 阅读全文
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T.S. eliot's mystery cat, Macavity, besides being a criminal mastermind able to evade the combined ranks of British law enforcement, had a coat that w 阅读全文
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The cylinder is a crucial part of the washing machine His debonair dismissal of my inquiry concerning his financial situation led me to believe that n 阅读全文
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There is "no realistic prospect" of the government meeting its own deadline to install smart meters, according to the National Audit Office (NAO).The 阅读全文
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Greenland's icy mountains are not an obvious place to search for an archive of economic history, but a study just published in the Proceedings of the 阅读全文