But HEPA filters cannot remove disease-causing particles smaller than zero point three microns.

VOA: special.2009.07.14

So, actually I want you to go ahead in your notes and circle that zero point and write "not a node."

在你们笔记上把这个零点圈出来,在旁边写上“不是节点“,它不是节点“

麻省理工公开课 - 化学原理课程节选

It's much more relevant to set our zero point energy as the separation of a bond in terms of talking about the reactions that we'll usually be dealing with here.

更好的是把零点能定在,键断裂的时刻,在讨论化学反应的时候,而我们以后将经常遇到化学反应。

麻省理工公开课 - 化学原理课程节选

An F is a failing grade worth zero toward a student's grade point average.

VOA: special.2009.03.05

And that zero point is the node.

这个零平面就是节点。

麻省理工公开课 - 固态化学导论课程节选

To change a reference point from this point here being zero instead of this point here being zero.

这样就得到了,开尔文温标。

麻省理工公开课 - 热力学与动力学课程节选

There's no decimal point; there's no point zero; there's no floating point value, it's just a hardcoded integer.

这里没有小数点，这里没有;,这里没有浮点数值，它只是一个整型数字。

哈佛公开课 - 计算机科学课程节选

So that's why we have this zero point here, and just to point out again and again and again, it's not a radial node, it's just a point where we're starting our graph, because we're multiplying it by r equals zero.

这就是为什么在这里有个零点，我需要再三强调，这不是径向零点，他只是我们画图的起始处，因为我们用ｒ等于０乘以它。

麻省理工公开课 - 化学原理课程节选

So, let's change our graph where we now have this zero point set as the two individuals hydrogen atoms, and then we see that our h 2 molecule is at the negative of the dissociation energy, or the negative what that bond strength is.

那么让我们把曲线图中的零点能改到,两个分离的氢原子处，那我们就会看到,氢分子就是负的离解能，或者负的键的强度。

麻省理工公开课 - 化学原理课程节选

So, it's a little bit artificial that we're seeing that zero point there.

看到零,事实上我希望你们能。

麻省理工公开课 - 化学原理课程节选

I want to point out that the zero energy is defined as when you have a naked proton -- where the electron has popped out -- that's what we've defined as zero energy up to this point when we're talking about single atoms.

我想指出，这里零点能的定义,是当我们只有一个裸露的质子,而没有电子时-,到目前为止对零点能一直采用这样的定义,当我们在讨论单个原子时。

麻省理工公开课 - 化学原理课程节选

But the important part here is that the work is not zero. You're starting at one point.

从任意一点出发,完成一个循环。

麻省理工公开课 - 热力学与动力学课程节选

So this, where we start at zero is not a node, is the first thing to point out.

零点不是节点，这是第一个要指出来的，当我们。

麻省理工公开课 - 化学原理课程节选

And our other reference point is the triple point of water - reference points become zero Kelvin, absolute zero, and the triple point.

而使用绝对零度,它与压强无关,是最低的温度，另一个参考点是水的三相点。

麻省理工公开课 - 热力学与动力学课程节选

And Celsius first used the boiling point of water, and called that 100 degrees Celsius, and the freezing point of water and called that zero degrees Celsius.

定义一些参考点，例如摄氏温标定义水的沸点，是100摄氏度,冰点是0摄氏度。

麻省理工公开课 - 热力学与动力学课程节选

But the point is, the main point is, it's not zero.

但关键是，这一项不等于零。

麻省理工公开课 - 热力学与动力学课程节选

The reason in our radial probability distributions we start -- the reason, if you look at the zero point on the radius that we start at zero is because we're multiplying the probability density by some volume, and when we're not anywhere 0 from the nucleus, that volume is defined as zero.

在径向概率密度里，我们开始,如果你们看半径的零点，我们从零点开始,因为我们用概率密,度乘以体积,而当我们，在离核子很近的地方,体积是，所以我们会在这里。

麻省理工公开课 - 化学原理课程节选