The eXpression of directivity of far field and near field was derived.
推导出了此类换能器的远场指向性和近场声压的表达式。
The directivity of the group of the point source and the line source is analyzed.
分析了点声源组和线声源的指向性。
Has a microphone with a single directivity and a wide frequency range.
频率范围宽的单指向性话筒，高质量的拾音效能。
Has a microphone with a single directivity and a wide frequency range.
频率范围宽的单指向性话筒，高质量的拾音效能。
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