Often that signal gets amplified so it can be used, same thing happens inside cells and there's some output that's generated.

通常这些信号要放大后才会产生作用,诱发细胞内发生一些变化,并产生某种输出信号

耶鲁公开课 - 生物医学工程探索课程节选

The way that the cell experience it is through some sort of biochemical changes.

细胞发生某种生物化学变化,以完成这个过程

耶鲁公开课 - 生物医学工程探索课程节选

You've got a property that changes, depending on the heat flow.

它的某种性质，随热量的流动变化。

麻省理工公开课 - 热力学与动力学课程节选

This is really a general idea in psychology that we are in a way wired up to be more sensitive to change than to steady states.

这是心理学上一个普遍的观点,某种意义上,比起稳定状态，我们对变化更敏感。

耶鲁公开课 - 心理学导论课程节选

A futures market has a prediction going out years into the future of what every financial variable will be doing, so you can see the future in a sense through the futures prices.

一个期货交易市场,预测了未来几年,每个金融变量的变化,因此,在某种意义上,你们可以通过期货价格分析未来市场

耶鲁公开课 - 金融市场课程节选

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

The other one is a committed progenitor cell that now somehow has been changed in such a way that it's going to mature and develop into non-stem cells or the cells that make up our bodies, somatic cells.

而另一个子细胞就通过某种变化,成了定向的祖细胞,并将成熟和发育为非干细胞的细胞,就是构成我们身体的细胞,体细胞

耶鲁公开课 - 生物医学工程探索课程节选

pV So there is an arbitrary set point that needs to be defined, right? Because what you actually measure in the lab are changes in enthalpy, just like what you measure when you look at energy change of some sort, you measure the change in energy, right.

焓也是一样，焓是U加,所以需要定义一个任意的设定值,对吧？因为实际上你在实验室里,测得的是焓的改变,就像你在研究某种能量变化时，所测量的那样，你测量的是能量的改变，对吧。

麻省理工公开课 - 热力学与动力学课程节选