“cardioid microphone”的概念、定义、翻译、参考文献-科学参考

单词	cardioid microphone
释义	cardioid microphone [`kärd·ē´ȯid `mī·krǝ´fōn] ^{ENGINEERING ACOUSTICS} A microphone having a heart-shaped, or cardioid, response pattern, so it has nearly uniform response for a range of about 180° in one direction and minimum response in the opposite direction.
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