当物体从A到，重力做的功为。
B Well, when it goes from a to b, -mgh1 the work done by gravity is minus mgh1.
功的单位等于马力小时内做的功。
我只想知道重力，做的功。
根据这个式子，做的功,因此多数派是正确的。
The pressure is going to decrease along the way, but it's going to have to do more work So the majority in this case is right.
我喜欢这么想，这样比较简单，正如我做的功一样。
I just like to think of it, it's easier for me to think of it, as the work that I do.
现在假设我把这两条路径结合起来，这是路径1做的功。
All right, now suppose that I took these two paths and coupled them together.
梯度场做的功有很多漂亮的性质，它们是特殊的的向量场。
Well, there's various nice features of work done by gradient fields that are not too far off the vector fields.
通常棒子会变热，你做的功，变成热能，导致棒子的变形。
And in general the rod gets hot, and the work that you have done goes into heat and goes into the deformation of the rod.
所以现在放下轨道，什么是功率，就是，一定时间内被做的功。
So I will abandon for now the orbits entirely What is power? Power is work that is done in a certain amount of time.
得到和以前，完全相同的答案，换句话说做的功，就是动能的差值。
And you get exactly the same result that you had before, namely that the work done is the difference in kinetic energy.
一点提示，不可逆过程中系统,对外界做的功，总是小于,之前我们。
Wirr Minus w irreversible, this is the work which is done to the environment by the system, -Wrev minus w irreversible is always smaller than minus w reversible.
然而如果你爬山，5000英尺的山，你爬上去，那你做的功是一百万焦耳。
However, if you climb a mountain 5,000 feet and you do that, then the work you have to do is a million joules.
其中一种说明了，在向量场上，沿逆时针方向，向量做的功等于，平面区域上旋度F的二重积分。
So, one of them says the line integral for the work done by a vector field along a closed curve counterclockwise is equal to the double integral of a curl of a field over the enclosed region.
如果用Stokes定理计算的话，电场对一条封闭曲线做的功，比如说，电厂中有一个金属线圈，想要知道金属线圈的电压是多少。
If we apply Stokes' theorem to compute the work done by the electric field around a closed curve, that means you have a wire in there and you want to find the voltage along the wire.
当我做正功的时候，重力做的是负功。
我们是不是也要吃掉，我们做的所有机械功呢？
Don't we have to eat also for all the mechanical work that we do?
粗略来讲，“功”度量的是，沿着曲线前进，F做多少功或克服F做多少功？
Roughly-speaking the work measures, you know when I move along my curve, how much I am going with or against F.
那是我做的一点功，对吗，我有一个恒力，是在短小的位移。
That is a little bit of work that I'm doing, right? I have a force which is constant during a short, small displacement.
瑜伽是一种老少皆宜的静态有氧运动。你可以选择独自练瑜伽功，也可以和朋友一起来练，甚至还可以同一组人一起做。
Yoga is one suitable static movement with oxygen for all the old and young people. You can do Yoga alone, with a friend, or even in group games.
机器是由一个或一个以上的机构组成，用来做有用的功或完成机械能与其他形式的能量之间的转换。
The machine is composed of one or more than one structure, which is used for doing the effective work or completing the energy transfer between mechanical energy and energy in other forms.
也就是说，在同等油耗下，汽车做的有效功越多则越好。
That is to say, in the same fuel consumption, the car to do more effective work, the better.
这就是修行完备的人做任何事都能善尽其功的原因。
This is why a man of perfect practice can accomplish everything.
游泳运动员不均衡地转髋就不会均衡的交替划水，就会使身体一侧做更多的功而导致能量的浪费。
Swimmers that do not have a balanced hip rotation will in turn have an unbalanced stroke, resulting in a waste of energy, with one side of the body performing most of the work.
一大把年纪很难构成做青年老师的好条件，因为它得不偿失、功不补患。
Age is no better hardly so well qualified for an instructor as youth for it has not profited so much as it has lost.
你越念晓得自己是不是忘却的时分，你反而忘得越明白，我曾经听人道功，该你不能再具有的时候，独一可以做的就是令自己不要忘怀。
The more you wanna know whether you have forgotten something, the better you remember; I once heard that, the only thing you can do when you no longer have something is not to forget.
于是，我开端做皮带扣生意，这是服装生意的一大基本功。
So I started with belt buckles. It's a good building block for a clothing business.
你的星星们告诉我你可以让自己慢下来，让它们做那些辛苦的功。
Your stars tell me you can afford to slow down. Let them do some of the hard work. Ring now to hear more about this week.
它出无仅可以通功B阶图像察望到己体的解剖构造，而且否以通功实彩图像现示出诸如血流的大大和方背等信做，为临床诊续供给了很好的辅帮信做。
It not only can show the anatomical structure of human beings through B-mode image, but also can display information such as magnitude and direction of blood flow velocity.
它出无仅可以通功B阶图像察望到己体的解剖构造，而且否以通功实彩图像现示出诸如血流的大大和方背等信做，为临床诊续供给了很好的辅帮信做。
It not only can show the anatomical structure of human beings through B-mode image, but also can display information such as magnitude and direction of blood flow velocity.
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