We did that, we came up with very good Chinese search engine technology, and we signed up a lot of the Chinese portals in a very short period of time.
我们开发了,很好的中文搜索引擎技术,并在短期内,和许多门户网站公司,签了合约。
We've formulated one particular kind of engine, and seen how we can analyze what it does, come up with relations that seem of value for efficiency and other quantities.
这是一个很典型的热机,我们来分析它是怎么工作的,然后得到效率和其它一些,有用物理量之间的关系。
Whereas If our engine is large, we are much more likely to get up that hill, and to do it gracefully with relative ease.
但如果我们的引擎够大,要上那山就容易得多,不费吹灰之力就能做到。
I mean, you know the wings go, and the air runs, and then the motor on the engine and it's a miracle how it gets up there and that is the way I used to explain the Greeks, because I had no better idea.
我的意思是,你知道机翼的作用,空气的流动,还有引擎上的发动机,飞机能飞起来,是个奇迹,我就是用这种方式来解释希腊历史的,因为我也没有更好的方法了
Now what I want to do is put up a specific example of the cycle that can be undertaken inside here in an engine, and we can just calculate from what you've already seen of thermodynamics.
现在我想做的是,举一个例子,来具体说明热机内部的循环过程,同时我们可以利用热力学定律进行计算,看看热力学参量发生了什么变化。
If we have a small engine, and we have to pull the car up a steep hill,a difficult hill, the engine is more likely to collapse,to blow up.
如果我们用的引擎很小,想把车开上一个陡峭崎岖的山坡,引擎很容易损毁,爆炸。
And these verbal descriptions lead to some pictures that I put up and I'll put up again about how you might try to accomplish something like run an engine or move heat from a colder to a warmer body.
这些言语的描述有助于你们理解我讲过的,而且还要再讲的一些物理图像,比如一台发动机,是怎么运行的,或热怎样从冷的物体传到热的物体。
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