英语词汇“directivity index”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典

单词	directivity index
释义	directivity index directivity index [də‚rek′tiv·əd·ə ‚in‚deks] (engineering acoustics) The directivity factor expressed in decibels; it is 10 times the logarithm to the base 10 of the directivity factor. Also known as directional gain.
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