When we developed that model, we were quite surprised of the consistency of this model, especially at the low frequency end where one finds most of the power of the pulse.

当我们设计出这种模型时，我们非常惊奇于这种模型的一致性，特别是在低频端发现了脉搏最有力的部分。

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The catch is that because low-frequency waves can travel great distances, when they do bounce off cavities or objects underground, they often end up far from the detection equipment at the surface.

捕捉过程是这样的，因为低频波可以传输到更远的距离，当它们遇到地下的空穴或其他物体反射回来的时候，已经距地面的接收装置很远了。

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They have an incredibly wide frequency range, especially in the low end, and even at extremely high gain Settings.

他们有令人难以置信的频率范围宽，特别是在低端，甚至在非常高增益设置。

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And Project SHIELD provides fidelity and dynamic range never before available on a portable device, through its custom, bass reflex, tuned port audio system -- with twice the low-frequency output of high-end laptops.

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The cylindrical speaker features two high-performance drivers, a built-in bass port and digital signal processing software to extend frequency response on the high end while providing tighter low ends for deeper bass response.

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The DA-F60 incorporates neodymium magnets and a passive radiator to produce results typically found in high-end Hi-Fi audio systems, including tuned low-frequency reproduction and virtually no distortion even at high volumes.

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