“video frequency”的概念、定义、翻译、参考文献-科学参考

单词	video frequency
释义	video frequency [`vid·ē·ȯ `frē·kwǝn·sē] ^{COMMUNICATIONS} One of the frequencies existing in the output of a television camera when an image is scanned; it may be any value from almost zero to well over 4 megahertz.
随便看	upstream face uptake upthrow up time upturn Upupidae upward bias upward compatibility upwarp upwelling upwind upwind effect urachus uracil Uralean uralite uralitization uranate urania uranic chloride uranic oxide Uraniidae uranin uranine uranine yellow

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