There is a contradiction between the detect time and precision in tachometry of vehicle motor.
在对车辆发动机转速的测量过程中，存在着测量时间与测量精度的矛盾。
It can detect time, amplitude and frequency of the power quality disturbances and also detect amplitude and frequency of harmonics by this method.
通过该方法可以确定非平稳的电能质量扰动信号的时间、频率和幅值信息；同样也可以精确的检测出谐波的幅值和频率。
It can detect time, amplitude and frequency of the power quality disturbances and also detect amplitude and frequency of harmonics by this method.
通过该方法可以确定非平稳的电能质量扰动信号的时间、频率和幅值信息；同样也可以精确的检测出谐波的幅值和频率。
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