Based on the equivalent circuit, the resonance frequency equation, the expression of resonance frequency and the angular displacement amplitude magnification are obtained.

在此基础上得到了空载时扭转振动的频率方程、共振频率表达式及角位移放大系数表达式。

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When the electrons-neutral collision frequency is less than the EM angular frequency, the collision absorption rates increase with the electron-neutral collision.

当电子-中性粒子的碰撞频率低于电磁波的角频率时，碰撞会加强电子的碰撞吸收和静电波的吸收；

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The equally slick BeatHome speaker features a 40Hz to 20KHz frequency range and packs a pair of tweeters and woofers inside an angular piano lacquer-lined housing.

ENGADGET: Beatpower enters the HiFi Bluetooth speaker fray, introduces speakers with panache (hands-on)