It is the perfect shape for producing a brilliant, expressive and infinitely variable sound in the same frequency range as the human voice.

这种结构是十分完美的，它使得小提琴可以产生美妙的，富有表现力的，以及在人声的频率范围内无限多变的声音。

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The second reason is that it is difficult to make these circuit voltage controllable over a large frequency range.

第二个理由是很难做到将这些电路的电压控制在一个很大的频率范围内。

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Since it is a range predicate and there are no frequency and histogram statistics available, the filter factor is calculated with the basic statistics information HIGH2KEY and LOW2KEY.

由于它是范围谓词，而且没有频度和直方图统计数据可用，过滤因子是用基础统计信息HIGH2KEY和LOW2KEY计算得出的。

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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.

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The handset incorporates audio technology that optimizes the frequency range based on a user's age, making it easier to hear the voice of the person on the other end of the call.

ENGADGET: Fujitsu, Orange partner on senior-friendly Stylistic S01 smartphone

The waterproof functionality doesn't come at the expense of the sound, either, with the Aquaris sporting high-definition sound with 48 channels with high frequency resolution and a 12 kHz frequency range.

ENGADGET: Siemens' waterproof Aquaris hearing aid means rain doesn't need to stop play, we go ears on