英德
有道
百度
谷歌
图片
维基
百科
倍频带 [bèi pín dài]
[声] octave frequency band
- 通过有限元计算得到1/3倍频程频带内的模态数目，确定适合统计能量分析的频率范围。
Number of modals of the gearbox is acquired by the Finite Element Analysis in the 1/3 octave frequency domain to define the suitable frequency range for SEA. - 扩频通信的射频信号频带宽度，可扩展到信息信号频带宽度的数倍乃至数千倍。
The band width of the radio-frequency signal for the spread spectrum communication can be spreaded to several times or even thousands of times the band width of the information signal. - 推导线性谱声压级、倍频带声压级以及各倍频带声压级之间的转换公式，计算出修正值。
The formulas for the transformation of sound levels between linear spectrum and multiplex frequency band, or among various multiplex frequency bands, are derived and the corrected value is calculated.
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