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If we go to low temperatures, it might look more like this.

如果我们用低温，它可能看起来更像这样。

youdao

If we go to low temperature, it might look more like this.

如果我们考虑更低的温度，它会看起来更像这样。

youdao

So, for example, we have this average level, and then it can go high where we have the peak, or it can go very low. We can also discuss sound waves, so again it's just the periodic variation of some property -- in this case we're talking about density, so we have high density areas and low density areas.

例如这是平均位置，在峰的位置水位高，在谷水位低，我们也可以,讨论声波它也是某种,量的周期变化，在这里我们,讨论的是密度,我们有高密度区和低密度区。

麻省理工公开课 - 化学原理课程节选

we start high and go low, we're dealing with emission where we have excess energy that the electron's giving off, and that energy is going to be equal the energy of the photon that is released and, of course, through our equations we know how to get from energy to frequency or to wavelength of the photon.

当我们从高到低时，我们说的,是发射,电子有多余的能量给出，这个能量等于，发出,光子的能量，当然我们可以通过方程,从能量知道，光子的频率，和波长。

麻省理工公开课 - 化学原理课程节选

But how low we can go will depend on assessing the future threat accurately, deterring adversaries while assuring allies, and maintaining confidence in the weapons that remain.

CENTERFORSECURITYPOLICY: Center for Security Policy | Don��t Go There: President Bush Must Avoid Temptation to Make Unwise Cuts in U.S. Nuclear Deterrent Forces

How low will we go?

FORBES: Readers Say

We have a long way to go and we should expect high unemployment, low or negative growth, bankruptcies, bear markets, foreclosures.

FORBES: The Outlook For Hyperinflation In The U.S.