In the past few months, the cost of wheat and sugar has more than doubled they say, and cooking gas, in constant short supply, can cost three times as much as it did a few months ago.

VOA: standard.2010.04.20

Just take it as a constant amount of operations But.

那让我们看看下一步呢？

麻省理工公开课 - 计算机科学及编程导论课程节选

And we can simplify this expression as saying negative e squared over 4 pi, epsilon nought r squared. Epsilon nought is a constant, it's something you might see in physics as well.

也会遇到它,在这里，你可以就把它,理解为一个转换系数,我们需要做的。

麻省理工公开课 - 化学原理课程节选

And as a consequence, access time in the list is constant, which is what I want.

这会占用一些额外的空间，回到问题本身，这么做的话，读取数组的时间就变成常量了。

麻省理工公开课 - 计算机科学及编程导论课程节选

What is dH/dT as a function, keeping pressure constant, what is dH/dp, keeping temperature constant?

恒定时偏H偏T是什么,温度恒定时的偏H偏p又是什么呢？,好的，让我们解决第一个问题？

麻省理工公开课 - 热力学与动力学课程节选

take the derivative of this, get the velocity vector and you notice his magnitude is a constant Whichever way you do it, you can then rewrite this as v square over r.

对这个式子求一次导,就能得到速度矢量,你会发现其模长是常数,不管用什么方法,加速度也可以写成 v^2 / r

耶鲁公开课 - 基础物理课程节选

If you want to write a function that describes this line here, it's pressure as a function of volume related to each other with this constant.

如果要写出描述这条等温线的方程,它的压强和体积,就通过常数C相联系起来。

麻省理工公开课 - 热力学与动力学课程节选

It grows as b. The 3 doesn't matter, it's just a constant, it's growing linearly.

它按b来增长，3只是个常量，3没有作用，答案是线性增长的。

麻省理工公开课 - 计算机科学及编程导论课程节选

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。

麻省理工公开课 - 化学原理课程节选