... 频率变换电路：frequency-conversion circuit 频率变化速率：frequency variation rate 频率编码制：frequency-coding system ...
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The results show that the deposit rate, composition and properties of coating change with the variation of duty ratio and pulse frequency.
结果表明，镀层的沉积速率、镀层成分及镀层的性能都随脉冲频率和占空比的变化而变化；
The larger the variation of amplitude and frequency of time-varying feed rate, the better the effect of suppressing chatter under some conditions.
在一定的条件下，时变进给量变化幅度及变化频率越大，抑振效果越好。
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