"So our view,with all respect, is that this is a car that can't be recalled and fixed, and that we ought to start over."
VOA: special.2010.02.27
Most of the people are -if you're not accredited as an investor it's like the government doesn't respect you; it's like they're treating you like children.
大多数人...,如果你不符合合资格投资者要求,就像是监管机构不尊重你,把你当成小孩
A It tells me that the partial of A with respect to T at constant V is minus S. Right?
他告诉我们,在恒定体积下对温度的微分等于负S,对吗?
"But it certainly doesn't hurt. I think it makes people regard him with more respect, at least in the short term,".
VOA: standard.2009.10.09
We don't refer--we have no reason to refer, - if we respect the autonomy of the poem as such, we don't refer-- we don't appeal to an authorial intention.
我们不能,我是说如果我们尊重,诗歌的意志自由的话,我们不能也没有理由-,为诗歌加上作者的意图。
"They don't really show respect anymore."
VOA: standard.2009.09.11
In other words, the order of taking the derivatives with respect to pressure and temperature doesn't matter And what this will show is that dS/dp dS/dp at constant temperature, here we saw how entropy varies with volume, this is going to show us how it varies with pressure.
换句话说,对温度和压强的求导顺序无关紧要,结果会表明,恒定温度下的,对应我们上面看到的,熵如何随着体积变化,这个式子告诉我们,熵如何随着压强变化。
So, using those, now, what happens if we take the second derivative of A, the mixed derivative, partial with respect to T and the partial with respect to V.
如果我取A的二阶导数,混合导数,对T偏微分,再对V偏微分。
And the point is that the second derivative of A, with respect to V and T in this order is the same as the second derivative of a with respect to T and V in this order.
问题的关键在于A的二阶导数,对V和T以这样一个顺序求导,和对T和V以这样一个顺序,求导是一样的。
OK, so for a constant volume process, du we can write du, partial derivative of dT u with respect to T at constant V, dT, dv plus partial derivative of u at constant V, dV.
好,对于一个恒定体积的过程,我们可以写出,等于偏u偏T,V不变,加上偏u偏V,T不变。
应用推荐