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汉语拼音：zhèn fú

也叫波幅。在振动过程中振动的物理量离开平衡位置的最大值。如振动弹簧的最大伸长、交变电流的最大电流强度等。

1. 物体或物理量在振动或振荡过程中偏离平衡位置的最大值。

   洪深 《戏的念词与诗的朗诵》六：“声带关合较密；从肺流出的空气，压力加高；振幅较广。”

• They thus have sine waves with large amplitudes and short wavelengths, both of which make them easy to see.

  这样，这些大行星就具有大振幅与短的波长“正弦波”曲线，而这两种特性让它们能更容易地被观察到。

• Special gain controls are used to regulate the amplitude levels at the beginning and end of the record.

  为了调节记录的开头部分和尾端的振幅电平，通常采用专门的增益控制。

• Due to its robustness to non-normal distributions and outliers, the median was used to estimate the impedance amplitudes.

  由于其鲁棒性的非正常分布和离群，中位数是用来估计阻抗振幅。

• The major indexes bounced up and down in another volatile day.

  主要股指出现较大振幅的上下波动。

• The entry grade (17) rates the quality of your entry by expressing it as a percentage of that day's range.

  第17列的进场分数，记录你当天在振幅内的进场点，用百分比表示。

• Firstly the focused incident beam is decomposed into a spectrum of plane waves, and the amplitude vector of each plane wave is acquired.

  首先将入射的聚焦光束分解为平面波谱，得到每个平面波的振幅矢量；

• amplitude of the vibrations, and the region of installation, determining the wind and seismic loads.

  振幅的振动，并在安装区域，确定了风和地震荷载。

• Music affects the amplitude and frequency of brain waves, which can be measured by an electro-encephalogram.

  音乐也影响着脑波的振幅与频度，这可以通过脑电波观测得到。

• The result of simulation shows that the amplitude of deviation can be reduced with the method, and improve the hit rate.

  仿真表明此控制方法对于机动目标能够使偏差的振幅减小，提高命中率。