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So, indeed, we are talking about a lot of void and a tiny little bit of extremely dense being.
事实上，更多的是许多真空,只有极小部分的高密度的物质。
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This is titanium sponge that comes out of the bottom of this reactor, and it subsequently re-melted in a vacuum arc furnace.
海绵状的钛,从反应器的底部出来，随后在真空炉中重新熔炼。
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And so an experiment said the gas didn't increase its temperature when it expanded the vacuum.
这个实验告诉你,气体在向真空膨胀的过程,中温度没有升高。
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Then here's the favorite of all time, vacu-pants, attached via the hose to your vacuum cleaner.
这是最受喜欢的,真空裤法,需要与真空吸尘器的管子相连
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In addition to that, we have that epsilon nought value, remember that's the permittivity constant in a vacuum, and basically that is what we use as a conversion factor to get from units. We don't want namely coulombs to units, we want that will allow us to cancel out in this equation.
这是电子的电荷，此外，我们有epsilon零，记住这是真空的介电常数，这是我们用来转换单位的转换常数,我们不想用库伦单位，我们希望这个可以在方程中约去它。
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And, in between, there is void, which is very similar to how we would describe vacuum.
而存在其中的，就是虚无了，那是与我们描述的真空很接近。
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When you expand a real gas into vacuum, the temperature goes down.
当一个真实气体，向真空膨胀咱的时候温度会下降。
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