振幅，等于15厘米。
然后把振幅，变成40厘米。
现在代入振幅，振幅等于高度的两倍。
Now I'm going to give it a displacement, an amplitude which is twice as high.
这就是所谓的“振幅键控”。
只有向量方向，即分振幅之间的比值，是重要的。
Only the direction of the vector, the ratios between the component amplitudes, is important.
看看不同谐波振幅的变化如何改变波。
See how changing the amplitudes of different harmonics changes the waves.
如果对轴的相同集合绘图，振幅曲线几乎看不出来。
If plotted on the same set of axes, the amplitude curve would be barely visible.
注意到在15行的振幅- 1不重要也是很有益的。
It's also instructive to note that the amplitude of -1 in line 15 is unimportant.
这代表振幅向后面波瓣传递的相继各阶段。
This represents successive stages of transfer of amplitude to later lobes .
进入睡眠状态时，我们的脑电波振幅慢慢变大。
As we fall asleep the amplitude of brain waves slowly becomes greater.
如果用弹簧，周期的确和，振幅无关，但也只是点到为止。
If you take a spring, it is true that the period of oscillation is independent of the amplitude but only up to a point.
当人们注意到了闪光，这些电频率的振幅会增加。
When people are attending to the flashing light, these electrical frequencies increase in amplitude.
针对振动的三要素即振幅、频率及相位分别做了介绍；
The analysis of vibration is introduced by its three factors-vibration amplitude, frequency and phase.
反射波振幅与入射波振幅的比率称作反射率或反射系数。
The ratio of the amplitudes of the reflected and incident waves is termed the reflectivity or reflection coefficient.
当你增加振幅，发光体区域得到发光器并且暗区得到黑色。
When you increase Amplitude, the light areas get lighter and the dark areas get darker.
一个数字电平的振幅控制被提供用于测试指示器电平公差。
An Amplitude Control of Digital Level is provided to test Indicator Level Tolerance.
在合适的电压下，硅条会进入一种滞后状态——硅会以两种振幅振动。
With the right voltage, the strip will enter a so-called hysteretic regime - where it will vibrate with one of two amplitudes.
但这种做法同时也降低了运动的振幅，使运动更难被探测到。
But that also reduces the amplitude of the motion, making it harder to detect.
实验结果表明，在声光器件设计时，必须考虑其相位和振幅特性。
The experimental results shows that phase and amplitude characteristics must be considered in the device designing.
请注意即使我们有四个非0振幅，这些振幅绝对值的平方和总能达到1。
Note that even though we have four non-zero amplitudes, the sum of the squares of the absolute values of the amplitudes always adds up to one.
如果我们平方1s星，我们把振幅翻转所以现在都是正的，但同样在中间有个节点。
So if we square sigma 1 s star, we flip the amplitude so it's all positive now, but again we still have this node right in the middle.
在下面的示例中，y轴绘制振幅，最大值为1,y2轴绘制相位，最大值为100。
In the example below, the Y-axis plots the amplitude, which has a maximum of 1, while the y2-axis plots the phase, which has a maximum value of 100.
直到观察之前该恒星还是一个高振幅震动器，接着它就谜一般地变成了小振幅震动器。
The star was a high-amplitude pulsator until right before the observing run started, when it mysteriously became a small-amplitude pulsator.
因此，如果这中间没有能量损失的话，即便海啸传播到很远，它依然会保留较小的振幅。
So even if no energy is lost, you are still going to get less amplitude as it is spreading out.
因此，如果这中间没有能量损失的话，即便海啸传播到很远，它依然会保留较小的振幅。
So even if no energy is lost, you are still going to get less amplitude as it is spreading out.
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