The Kansas State University study, however,may show a way that reduces risk for people who grill on high heat.
VOA: special.2009.05.19
a You know that what will happen is that heat will flow from a to b from b to c and from a to c. That's common-sense.
你知道会发生的是热量从流向,从流向,以及从流向。
I didn't even need to know that heat capacity of the product, right. Because it's effect the thermal mass of the product is negligible compared to the thermal mass of the calorimeter.
我甚至不需要知道生成物的,热容是多少,因为生成物的,热质量的作用相比于,量热计的热质量是可以忽略的。
He explains that as the water freezes, it produces heat,and the ice forms a protective blanket around the tree.
VOA: special.2010.01.12
Her face became purplish except for little, white marks over it that didn't heat up.
她的脸几乎变成了紫色,还有些白色的小斑点。
The Kansas State University study, however, may show a way that reduces risk for people who grill on high heat.
VOA: special.2010.06.01
If the temperature drops below a certain level it sends a signal, 'turn on the heat', and that signal stays on until it gets a negative signal to turn off.
如果温度降到一定程度以下时,探测器会发送一个信号,打开加热器,直到加热器再收到关闭的信号,它就会一直开着
They found that a city with only white rooftops could reduce the urban heat effect by thirty-three percent.
VOA: special.2010.03.02
So that's the important take-away message from this slide. If we think about these different types of lights, microwave light, if it's absorbed by a molecule, is a sufficient amount of frequency and energy to get those molecules to rotate. That, of course, generates heat, so that's how your microwaves work.
重要的信息,如果我们看看,这些不同种类的光,微波,如果被分子吸收,它的频率和能量可以,使分子转动,这当然的,会产生热量,这就是你们微波炉的工作原理。
But as if it depended upon that hot-blooded princess, her soul at a white heat under the fires of sadness and jealousy.
VOA: special.2009.04.18
You could imagine the dualist coming back and saying, "Look, in the case of the heat-seeking missile or the robot for that matter, although it's doing things, it's just obeying orders.
你可以假想二元论反驳说,在热追踪导弹,或是机器人的例子里,尽管他们各尽其职,但也只是恪守命令
By nineteen forty-five, there was a lot of heat in a lot of different areas -- professional baseball was certainly feeling that.
VOA: special.2009.04.05
In that process there is a metabolic engine at work, and some people have an efficient engine so that the calories in get banked in the fat, other people have an inefficient engine, that is the calories get wasted as body heat and things like that, and they tend not to gain weight.
这过程中人体内有个工作着的代谢引擎,有些人的代谢引擎效率很高,热量便转化为脂肪储存起来,另一些人的效率低下,能量就以体温等形式被浪费了,因此他们就不容易发胖
In the mountain,the heat and dust were so thick that most men would have had trouble breathing.
VOA: special.2009.02.21
So, you need some sort of property, something you can see, something you can measure, that tells you that heat has flowed.
所以,你需要某种性质,某种你能看到,能测量的东西,它会告诉你热量发生了流动。
(THE WHO - "SUMMERTIME BLUES") The Lovin' Spoonful was a band that did not love summers in the city because of the heat.
VOA: special.2009.06.22
Otherwise you're going to waste some of that heat somewhere along the way, some of energy.
否则你就必须在这个过程中,浪费一些热量。
During the second orbit, one of these signals warned that the heat shield might not be locked firmly to the bottom of the spacecraft.
VOA: special.2009.06.17
And the idea was that gravity did work on the water and falling, and that work led to the generation of heat.
焦耳的想法是,重力对水,做了功。
He says the study shows that, in theory,white roofs could be effective in reducing urban heat.
VOA: special.2010.03.02
Now, the coefficient that relates the amount of heat in to the temperature change is obviously going to be different for these two cases.
在这两个例子中,很显然联系热量和温度变化的系数,是不一样的。
Black-painted surfaces that receive the sun's heat become hotter than surfaces of any other color.
VOA: special.2009.04.20
You know from experience if you've ever mixed them to make salad dressing, they don't mix too well. And you may know that if you heat them up, they mix much better.
经验告诉我们,你无法把它们混合做成色拉酱调料,他们不会很好的混合,但是你也知道,如果我们把他们加热,就能够混合的更好。
Carbon dioxide is one of the gases that may affect the climate by trapping heat.
VOA: special.2009.12.01
So we're just subtracting, in effect, zero, right, from the enthalpy of the product, but of course it's important have that established because the heat of formation is something you could measure, right?
所以从效果上说,我们只是,从生成物的焓中减去了零,但,是确立这一点很重要,因为生成热是,你能测量的东西,对吧?
What you want to do is heat your base bead until it's that honey-like consistency.
VOA: special.2009.05.18
And all of that is coming out of the heat of reaction, whether it's positive or negative.
所有这些都来源于反应热,它可以是正的或负的。
That involves preventing industrial gases from escaping into the atmosphere where they can trap heat.
VOA: special.2009.11.21
You do it so quickly that the heat flow between the inside of the bicycle pump and the outside is too slow compared to the speed at which you compress.
我们用力很大,于是压缩得很快,打气筒内外热传递的速度,与之相比要慢得多。
So we know that in each case the heat is going to be the opposite of the work, but the work isn't the same in these two different ways of getting from here to here, right. So let's just see it explicitly. Here's our qA.
所以我们知道在每种情形下功,与热量相差一个负号,但从这里到这里,在这两条路径,中的功是不同的,对吧?,那么让我们明确地看一下。
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