该倍频器的倍频范围为1～999，倍频值可直接由软件选择；
The range of double frequency is from 1 to 999. The double frequency number is selected directly by software.
同时运用1/3倍频程分析对比法和总加权加速度有效值法评价了拖拉机的乘坐舒适性。
The 1/3 octave bands and total weighted average are exploited to estimate the ride comfort of the tractor.
在次同步谐振发生的时间内，弯振谱图上二倍频成分消失，工频成分的幅值变小。
From frequency diagram of flexural vibration, it is revealed that the vibration amplitude of 1X frequency decreases and that of 2X frequency disappears.
通常存储的信息可能包括的'a '加权的Leq, LN的值，声压值，也许1：3倍频为音调分析信息。
The usual stored information may consist of the 'a' Weighted Leq, LN values, SPL values and perhaps 1:3 Octave Band information for tonal analysis.
通常存储的信息可能包括的'a '加权的Leq, LN的值，声压值，也许1：3倍频为音调分析信息。
The usual stored information may consist of the 'a' Weighted Leq, LN values, SPL values and perhaps 1:3 Octave Band information for tonal analysis.
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