The long,thin fibers are strong, and can work well to reduce temperature changes.
VOA: special.2009.11.17
What I really want to do is just give an example of what happens when you throw the thing, the material into a calorimeter and see how much the temperature changes.
我想做的是给出当,你把这些东西,这些材料扔进,量热计时会发生什么,看看温度会变化多少。
So that tells us what to do to know the entropy as the temperature changes.
这告诉我们当温度变化时,如何得到熵的数值。
Instead,these experts say, our planet is experiencing a normal series of temperature changes.
VOA: special.2010.01.19
Some of the challenges that you see here I mentioned before, so there are problems with drought, with pests, with temperature changes and the like.
我之前提到的,你们所见的这些挑战,如干旱问题,虫害问题以及温度变化之类的
It also limits temperature changes in the soil.
VOA: special.2009.06.30
In fact, temperature is such a carefully controlled parameter that when it changes just a little bit by a couple of degrees, we know that something's wrong.
事实上,体温被控制得如此精细,哪怕只改变几度,我们就能感觉出来不对劲
Mister Harrison had to develop a clock that was not affected by the movement of a ship on the ocean or changes in temperature or atmospheric pressure.
VOA: special.2010.07.14
And you already saw last time there was this relationship between the temperature and volume changes along an adiabatic path.
是条绝热路径,而上次你已经看到,沿着绝热路径温度和体积,的变化有这个关系。
Opening and closing it changes the temperature too much.
VOA: special.2010.02.24
In other words, now I know how to tell how the Helmholtz free energy changes as a function of temperature.
换句话说,我现在知道如何写出亥姆赫兹,自由能作为温度的函数。
"With the changes in temperature vectors - disease vectors like mosquitoes have been reported to cause malaria in places that had never reported malaria cases,".
VOA: standard.2010.01.02
You know how pressure changes with temperature at constant volume if you know the equation of state.
如果你知道状态方程,知道在体积恒定的时压强如何随着温度变化。
Now these quantities were useful because you could relate them. The slope of changes, with respect to volume or temperature of the energy with respect to quantities that you understood, that you could measure.
去得到这些量,这些量很有用,而且你们已经知道了,怎么把它们相互联系起来,像这种比例形式的量,能量比上温度或体,或其它你们懂的可以测量量。
If you change the temperature entropy changes and so on.
如果你改变温度,熵也会变化。
应用推荐