提出将互相关检测和混沌理论相结合应用于过电压监测中的频率跟踪，检测相对于中心频率极小的微弱信号。
The method which combines cross correlation detection with chaos theory to detect the weak signals relative to central frequency in overvoltage monitoring is proposed in the paper.
如果仅仅小于附近任一点的值，那它就是相对的，或者说是局部的极小值。
If it is merely less than at any nearby point, it is a relative, or local, minimum.
盐雾实验中，盐的浓度、大阴极小阳极的面积比以及阴极材料相对于镁阳极的尺寸是加速镁合金电偶腐蚀的重要因素。
The concentration of salt and the relative areas of the large cathode coupled with a small magnesium alloy anode have an important effect on the accelerated galvanic corrosion in salt spray test.
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