The fiber surface sound cone of the invention is prepared from a composite material and solves the problem that the cone and concave sound cone occupy too much space of the loudspeaker.

本发明的纤维平面音盆，采用复合型材料做成，解决锥体与凹面音盆占得过且很大扬声器空间的问题。

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Airplanes flying faster than sound create a cone of pressurized air molecules that extends to the ground, as NASA explains.

据NASA解释，飞机在超音速飞行时会产生延伸到地面的加压空气分子锥。

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Internal Damping damps out any ringing or vibrations in the cone structure that would otherwise color the sound.

内部阻尼将任何在锥体结构中的鸣响或震动阻挡出去，否则会产生杂音。

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But walking across the dark volcanic rocks with the snow cone of Mt Erebus behind and the sound of penguins braying along the sea ice of the sound, it is easy to imagine yourself transported back to the early years of the last century, for this is a timeless landscape.

BBC: In the footsteps of Shackleton