The range of double frequency is from 1 to 999. The double frequency number is selected directly by software.

该倍频器的倍频范围为1～999，倍频值可直接由软件选择；

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The optimal combinative scheme of composite high-yield agronomic measures for top yield level was showed by the frequency number analysis.

通过频数分析，得出指定产量水平下的最佳综合农艺措施给合方案。

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Regular repeating actions such as sound waves, light waves, or radio waves have a certain frequency, or number of waves per second.

有规律的重复活动如声波、光波、无线电波都有一个特定的频率，或者说是每秒的波动次数。

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Strum down a list of radio stations and you can feel as your fingertip passes over each frequency number.

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Since the 1930s, the mass of research evidence points to the existence of several factors common to all forms of therapy despite theoretical orientation (dynamic, cognitive, etc.), mode (individual, group, couples, family, etc.), dosage (frequency and number of sessions), or specialty (problem type, professional discipline, etc.).

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He said porpoise had not been seen around the bridge with any frequency for a number of years, but several have been sighted so far this year.

BBC: Marine mammal returns to bridge