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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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更新时间:2026/9/20 17:59:27