If you have a quantity which is constant over any closed path, that quantity is a thermodynamics state function.
如果有一个物理量,对任何闭合回路积分是常数,这个物理量就是一个热力学态函数。
In other words, we're taking advantage of the fact that we now know that quantity. In the case of the ideal gas we just have a simple model for it.
换句话说,我们可以利用我们已经,了解这个物理量的这个优势,对理想气体我们有一个简单的模型。
All those things have to happen in an orderly fashion, in enough quantity in order for a particular cell to make a protein.
所有的步骤必须按部就班,保质保量地进行,让一个特定的细胞合成特定的蛋白质
That quantity in parenthesis, I have a mass which is a positive number. Something raised Something raised to the fourth power has got to be positive.
顺便说一句,质量这个量是个正数,四次方的值,肯定是正数。
The basic definition-- the expected value of some random variable x--E--I guess I should have said that a random variable is a quantity that takes on value.
最基本的定义,某一个随机变量X的期望值E,我应该提到过,随机变量是一个可以取值的数
OK, but in order to relate turning these physical knob to this quantity here, which we don't have a very good feel for, we've got to have a feel for the slopes.
热量是怎么进一步改变的,但是为了把这些物量同我们,不是很理解的焓联系起来,我们对微分已经有了一定的了解。
So we have this condition that's established in a quantity that we know how to calculate.
在种种条件下,我们得到了一个我们知道如何计算的物理量。
And so now we have this quantity, p times v bar, and the limit of p goes to zero is equal to a constant times the temperature.
不仅仅对氢气或氮气适用,在p趋于0的极限下,它适用于任何气体。
We have an interpolation scheme between zero and 273.16 with two values for this quantity, and we have a linear interpolation that defines our temperature scale, our Kelvin temperature scale.
的两个值做线性插值,就得到了开尔文温标,直线的斜率等于水的三相点,也就是这一点处的f的值,再除以273。16,这是这条直线的斜率,这个量,f在三相点处的值。
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