例如，一架50,000英尺高处的超音速飞机可以制造出50英里左右宽的音爆圆锥。
An aircraft, for example, flying supersonic at 50,000 feet can produce a sonic boom cone about 50 miles wide.
您将欣赏其扁平，宽范围的频率响应，这是完美的近距离拾音的口头或半的演唱。
You'll appreciate its flat, wide-range frequency response, which is perfect for close-miked spoken or sung vocals.
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