“low-noise amplifier”的概念、定义、翻译、参考文献-科学参考

单词	low-noise amplifier
释义	low-noise amplifier [`lō ´nȯiz `am·plǝ´fī·ǝr] ^ELECTRONICS An amplifier having very low background noise when the desired signal is weak or absent; field-effect transistors are used in audio preamplifiers for this purpose.
随便看	impedance coupling impedance drop impedance irregularity impedance magnetometer impedance match impedance-matching network impedance matrix impedance meter impedometer impeller impeller pump Impennes imperative language imperative statement imperfect crystal imperfect flower imperfect gas imperforate imperforate anus imperial gallon imperial pint imperial red imperial smelting process impermeable impermeable junction

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