首先是构成城市的材料的热容,通常由混凝土和沥青主导。
The first is the heat capacity of the materials that constitute the city, which is typically dominated by concrete and asphalt.
我们将不会具有恒定的压力热容量,而是具有恒定的体积热容量。
We're not going to have the constant pressure heat capacity, but the constant volume heat capacity.
在农村,材料的热容量要低得多,因为植被可以防止热量轻易地从地面流入或流出。
In the countryside materials have a significantly lower heat capacity because a vegetative blanket prevents heat from easily flowing into and out of the ground.
另一方面,感热的储存允许温度有一定的灵活性。此外,水和大多数岩石等安全物质具有较大的感热容。
The storage of sensible heat, on the other hand, allows flexibility as to temperature; in addition, safe substances like water and most rocks have large sensible heat capacities.
那么我们已经看到热容的极限情况。
我们已经看到极限情况下的热容。
所以热容的极限值是零,能量本身也是零。
So you get the zero limiting value for the heat capacity, and the energy itself is also zero.
热容是怎样的,在不同极限情况下。
What the heat capacities would be in various limiting cases.
热容是du/dT,它等于零是,因为这是。
kT The heat capacity is du/dT. It's zero because, here's kT.
因为你在那得到摩尔数,如果你问热容有多大?
Because you've got a factor of the number of moles in there. If you ask how big is the heat capacity?
我们感兴趣的是星际气体的热容量。
We will be interested in the heat capacity of interstellar gases.
特别地,我想谈谈热容,和我们已经看到的能量。
And in particular, I want to talk about both the heat capacity and the energy that we've seen.
如果有有限数目的可能的状态,高温时的热容是什么?
What's the heat capacity at high temperature, if there's a finite number of states available?
本质上在这种情况下,热容,对一种振动模式不只是。
Basically, in that case, the heat capacity Nk it's not just Nk for one vibrational mode.
最初考虑的是气密性、热容量和高级隔热材料。
Primary considerations were airtightness, thermal mass and high levels of insulation.
当使用干冰时,请不要密封内部的隔热容器。
When using dry ice , do not seal the inner insulated container.
热容及其随温度的变化由原子的能级之差来决定。
Heat capacity and its temperature variation depend on differences in energy levels for atoms.
确定热容许运行速度时,应考虑特殊的运行条件。
Special operating conditions are taken into consideration by determining the thermally permissible operating speed.
爱因斯坦意识到,这是用来解释,热容的低温极限的一种方法。
And Einstein recognized that this was a way to explain this low temperature limiting heat capacity.
水的高热容量使得海流以非常有效的方式传送热能。
The high heat capacity of water makes it possible for ocean currents to carry heat in a very efficient manner.
热容联系起给系统提供的,热量和温度的变化,关系式是这样的。
Heat capacity relates the amount of heat that you add to the system to the change in temperature, and this is the relationship.
的热容,熵,升华焓等热力学函数,并与实验值进行了比较。
The standard heat capacity, entropy, sublimation enthalpy of graphite.
结果表明,堆焊层的成形与堆焊材料的比热容量和熔点有关。
The results show that the formation of surfacing layers is related to the heat capacity and melting point of surfacing materials.
T等于热量q除以恒定的等压热容,其中热量与,蜡烛燃烧的多少相关。
Cp And delta T is given by the heat, which has to do with how much of the candle burnt, divided by the constant pressure heat capacity.
比热容不仅取决于所研究的物质,而且依赖于加热的外部条件。
Specific heat depends not only on the material in question but also on the external conditions of its heating.
分析了多排螺旋CT管球对热容量的要求以及其剂量效率的变化。
The demand of tube thermal capacity and the change of dose efficiency of MDCT have been analyzed.
骤然地你就得到零热容,因为你把温度改变一点,所有振子仍然被冻结在这儿。
And suddenly you've got zero heat capacity, because you changed the temperature a little bit, and everything is still stuck back here.
现在我知道怎样把能量的流动,和温度的变化联系起来,通过热容。
Now, I know how to relate the heat flow to temperature change, through the heat capacity.
他们对这样的事实很熟悉,当你在通常的温度——室温,热容是不依赖于温度的。
And they were familiar with the fact that when you got to ordinary temperature — room temperatue the heat capacity was temperature independent.
那意味着热容,当然我们也可以做它的极限,但我们用它,对温度求导更容易些。
And what that says is that the heat capacity and of course we could take the limit of this, but we can just take the derivative of this with respect to temperature more easily.
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