The headphone impedance plot is a measure of the dynamic resistance in ohms of the headphones over the entire audible frequency range.

耳机阻抗剧情是动态抵抗的措施在耳机的欧姆在整个可听见的频率范围。

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L. f. noise can be better attenuated so as to obtain good attenuation characteristics over the entire audible frequency range by using active noise reduction technique in the closed-air type earmuff.

在密闭型耳罩中，利用有源降噪技术可以较好地衰减低频噪声以使整个可听声频率范围内获得良好的衰减特性。

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The electromagnetic parameter of power transmission include: power frequency electrical field, power frequency magnetic field, radio inference (ri) and audible noise (an).

输电线路的电磁环境参数主要包括工频电场、工频磁场、无线电干扰和可听噪声四个方面。

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Philips DoubleBASS uses the powerful processing of the system to detect ultra-low frequencies and then recreate them within the audible frequency range of the subwoofer, giving the impression of delivering bass down to an amazing 20Hz.

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