“active antenna”的概念、定义、翻译、参考文献-科学参考

单词	active antenna
释义	active antenna Encyclopedia 工学【特种天线】释 active antenna有源天线在含金属和介质的一般天线中，还含有晶体三极管、隧道二极管、变容二极管等有源器件的天线。
随便看	length of a word length of charge length of circumference length-of-day change of the earth length of delay length of exposure length of intervals length of iteration length of laminar jet flame length of lay length of life length of normal length of pendulum length of perpendiculars length of river length of sampling length of shot length of sleeper length of span length of stemming length of stroke length of tangent length of the chord length of the period length of the tropical year and length of the synodic month

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