We draw them as sine waves, as if something's going back and forth or up and down.

我们把它们画成正弦波，就好像有东西在前后或上下运动。

But that sine wave is just gonna be a tremendous load on all the health care providers.

但这个正弦波对所有医务工作者来说都是巨大的工作量。

So we generate this swept sine wave and we use that to capture the acoustic of the cave.

我们生成这个正弦扫频信号，然后利用它来测定洞穴的声音特性。

We're going to be moving our mass of cubes using a sine wave.

我们将使用正弦波移动大量的立方体。

We're picking up our old ECS example project, the sine wave of cubes.

我们正在使用旧的 ECS 示例项目，立方体的正弦波。

" Possibilities! " The thought hung like a sine wave in Leto's mind: Paul and Jessica haveescaped!

“可能性！”这个想法像正弦波一样悬在雷托的脑海里：保罗和杰西卡逃脱了！

Well, if you multiply this signal by a sine wave of an arbitrary frequency, the two waves are uncorrelated.

好吧， 如果将此信号乘以任意频率的正弦波，则两个波是不相关的。

Repeat this process for all frequencies of sine waves and you get the frequency spectrum.

对正弦波的所有频率重复此过程，即可获得频谱。

He'd watch the broken sine wave of the telephone lines, looping on and on and on for miles, then veering away, then rejoining the bus's path.

他会观察电话线发出的断断续续的正弦波，起起伏伏，绵延数英里，转向别处，然后又重回公交车的路线上。

And the size of this area tells you the relative amplitude of that frequency sine wave in the signal.

该区域的大小告诉您信号中该频率正弦波的相对幅度。

I'm just about working with our natural ebb and flow of energy and working with our natural ebb and flow of interest almost like a sine wave.

我只是说要顺其自然，顺从我们兴趣的波澜，就像正弦波一样。

These pressure variations can be modeled by a sine wave, where the peaks represent increased pressure and the troughs represent decreased pressure.

这些压力变化可以通过正弦波建模，其中波峰代表压力增加而波谷代表压力降低。

Looking at this sine wave, the frequency is defined as how many wavelengths, or complete cycles, pass a specific point in one second.

查看这个正弦波，频率定义为一秒钟内有多少波长或完整周期通过特定点。

And that motion is mathematically identical to the motion of something bouncing up and down on a spring with a linear restoring force - also sine waves over time.

这种运动在数学上和一个物体在弹簧上以线性恢复力（随时间变化的正弦波）上下弹跳的运动是一样的。

This seems a bit like magic since the sum of a set of sine waves can look arbitrarily complicated and nothing like its component parts.

这看起来有点像魔术，因为一组正弦波的总和可以看起来任意复杂，并且与它的组成部分完全不同。

If the sine waves frequency is one of the components of the signal it will correlate with the signal producing a non-zero area.

如果正弦波频率是信号的组成部分之一，它将与产生非零区域的信号相关。

A Fourier transform is a way of decomposing a signal into pure sine waves, each with its own amplitude and frequency that add to make it up.

傅里叶变换是一种将信号分解为纯正弦波的方法，每个正弦波都有自己的振幅和频率， 相加而成。

So for each frequency, we actually need to multiply by a sine wave and a cosine wave and find the amplitudes for each.

因此，对于每个频率，我们实际上需要乘以正弦波和余弦波并找到每个频率的振幅。

You multiply each point by a sine wave of this frequency and a cosine wave of this frequency and separately add them up.

将每个点乘以该频率的正弦波和该频率的余弦波，然后将它们分别相加。

If you wanna know how much of a particular sine wave is in a signal, just multiply the signal by the sine wave at each point and then add up the area under the curve.

如果您想知道信号中有多少特定正弦波，只需将信号乘以每个点的正弦波， 然后将曲线下的面积相加即可。