Multiple reignition makes the frequency and amplitude of overvoltage increase and might do harm to transformer coils by cumulative effects for its surge steepness.
High quality television display screen used to view a TV signal in its unmodulated state.(Modulate-to vary the amplitude,frequency or phase of radio or television).
Numerical simulation studies indicate that the adaptive filter is a powerful noise suppresser for correlated interferences, especially for those with amplitude changing and time delay.
乡 
电路主要
于输入信号幅度甄别和反符
。
自维基百科的定义：消磁器产生幅度递减的快速交变磁场。
潮即是半月潮幅度最大时段再迭加半日潮和全日潮。
决定着声音对人类来说有多响。
。
记得声音的音高和响
物理
。
而不
效率。
