词汇“扬声器指向性 directivity of loudspeaker;”的意思、用法、释义、翻译、读音、例句、短语、词组-国际大辞典

单词	扬声器指向性 directivity of loudspeaker;
释义	见:扬声器: 扬声器指向性 directivity of loudspeaker;
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