“frequency meter”的概念、定义、翻译、参考文献-科学参考

单词	frequency meter
释义	frequency meter [`frē·kwǝn·sē ´mēd·ǝr] ^ENGINEERING 1. An instrument for measuring the frequency of an alternating current; the scale is usually graduated in hertz, kilohertz, and megahertz. 2. A device cali- brated to indicate frequency of a radio wave.
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