And,this is the mechanism that leads into this vicious cycle where you suddenly do not see or do not perceive to have any alternative."

VOA: standard.2009.08.21

If you repeatedly go through this cycle of denaturing, synthesizing, denaturing, synthesizing you'll get many, many copies of DNA.

如果你不断重复这个变性-复制,变性-复制的循环过程,你就会得到很多很多的DNA复制产物

耶鲁公开课 - 生物医学工程探索课程节选

So we're going to go through a thermodynamic cycle, and here's what I want to calculate when we do this.

那么我们要推导,一个热力学循环,这是这个过程中我要计算的东西。

麻省理工公开课 - 热力学与动力学课程节选

Yes, it happens this week we are starting over in the cycle of reading five books of Moses we've been reading the story in Genesis of the creations of the world.

是的，就在这周,我们开始阅读摩西五经,我们一直在读《创世纪》中,关于创造万物的故事。

普林斯顿公开课 - 人性课程节选

This is called the Born-Haber Cycle, what I am showing you right now.

这个是玻恩-哈伯循环，也就是我正在讲的。

麻省理工公开课 - 固态化学导论课程节选

And what we know is that very often we enter a downward spiral, a vicious cycle when we go into this narrow and constrict mode.

我们知道经常会进入下行螺旋，一个恶性循环，当我们进入狭窄收紧的模式。

哈佛公开课 - 幸福课课程节选

It's the beginning of his Ring cycle and we're going to listen to this.

我们将要听的是开头部分。

耶鲁公开课 - 聆听音乐课程节选

Of course there are lots of ways we can execute the cycle, but this is a simple one, and these are steps that we're all familiar with at this point.

当然循环过程,可以有很多种方法，这是一个简单的例子，这是循环过程,循环中的每一步我们都很熟悉。

麻省理工公开课 - 热力学与动力学课程节选

Now, if we go back to our Carnot cycle which is a set of reversible paths, it's useful to compare this to what happens in an irreversible case.

如果回到卡诺循环,它是由一系列可逆过程组成，我们将它,和不可逆过程的情况相比较。

麻省理工公开课 - 热力学与动力学课程节选

So this is the picture, and this is a cycle that undertakes it.

这是图像，是由这个循环开始的。

麻省理工公开课 - 热力学与动力学课程节选

Mitosis is one event that happens during this larger event called the cell cycle.

有丝分裂就是发生在,较大的细胞周期中的一个小一点的环节

耶鲁公开课 - 生物医学工程探索课程节选

This is a life cycle of a particular class of viruses called retroviruses.

这里是称为逆转录病毒的一种特殊病毒的,生命周期

耶鲁公开课 - 生物医学工程探索课程节选

So that is why this is called the Born-Haber Cycle.

这就是为什么这个称为玻恩-哈伯循环。

麻省理工公开课 - 固态化学导论课程节选

Now, I wanted to go to through this just to go through one cycle quickly because we're going to be doing these all the time, and the importance of the fact that the path doesn't matter, and you can always connect things together in a way, whatever you want.

我使用这种,利用热力学循环的推导方法的原因在于,今后我们，将经常使用类似的方法,大家要记住路径是无关紧要的，可以随意选取一条路径,来连接两个态。

麻省理工公开课 - 热力学与动力学课程节选

It gets produced in response to a signal so there's a binding of a ligand to a receptor, the enzyme that does this conversion is activated and more cycle AMP is released.

这类分子的产生是对信号做出的一种反应,当配体和受体结合时,催化这种转化过程的酶被激活,更多的cAMP释放出来

耶鲁公开课 - 生物医学工程探索课程节选

That's when I have difficulty getting out of this downward, vicious cycle.

那时我将很难脱离这种下行，恶性的循环。

哈佛公开课 - 幸福课课程节选