It turns kinetic energy into heat, and that is perfectly fine in the work-energy theorem.
可以把动能转为热量，这点在功能定理，中是非常好的。
You get exactly the same result, and I find this somehow more pleasing to use the work-energy theorem.
会得到完全相同的答案，我觉得用功能定理，会更加的简洁。
And so you could have used the work-energy theorem or you can use the conservation of mechanical energy.
所以你也可以用，功能定理，或者是机械能，守恒定律。
To derive the Bernoulli equation, we apply the work-energy theory to the fluid in a section of a flow tube.
我们应用功能原理来导出流体在一段流管流动的伯努利方程。
I used first the conservation - of mechanical energy — there was no friction — and then I showed you that it's completely consistent with the work-energy theorem, so what would you do now?
首先，我用了机械能，守恒定律-，这里没有摩擦力-，我会向你们展示，这，和功能定理完全一致，现在你会怎么做呢？
His work involved helping hyperactive children to use their energy in a constructive way.
他的工作包括帮助患有多动症的儿童建设性地利用他们的精力。
Your creative talents can also be put to good use, if you can work up the energy.
如果你能激发自己的能量，你的创新才能也能派上好用场。
Work on designs for the new turbine blades and sites are well advanced at the University of Southampton's sustainable energy research group.
南安普顿大学的可持续能源研究小组在设计新型涡轮叶片和选址方面进展良好。
According to the Centre for Strategic and International Studies, about three quarters of energy we use to move things, including ourselves, accomplish no useful work.
根据战略与国际研究中心的数据，我们用于移动包括我们自己的物体的能量中，约有四分之三没有完成任何有用的工作。
If we could figure out how to improve the efficiency with which we use energy, we can do a lot more work with the energy that is available.
如果我们能弄清楚如何提高我们使用能源的效率，我们就能用可利用的能源做更多的事情。
I'm burning some energy, and I'm burning some fuel to do this somehow, to get that work to happen.
我正在燃烧一些能量，并且正在燃烧一些燃料以某种方式做到这一点，以使这项工作得以实现。
According to the Center for Strategic and International Studies, about three quarters of the energy we use to move things, including ourselves, accomplishes no useful work.
战略与国际研究中心表示，包括我们自己在内，我们用来移动事物的能量中，约有四分之三的能量没有产生有用功。
We all need to get involved in saving energy whether it's at work, at home, or at school.
无论是在工作中，在家里，还是在学校，我们都需要参与到节约能源的活动中来。
If we are eating the correct food and the correct amount of the food, we will have enough energy for our bodies and minds to work properly.
如果我们食用正确的食物和正确数量的食物，我们将有足够的能量让我们的身体和大脑正常工作。
Best of all, humor raises your energy, and that can have an effect on everything you do at school, at work, or in your personal life.
最重要的是，幽默能让你能量满满，影响你在学校、工作或是个人生活中的表现。
You'll feel some relief right after, giving you enough energy to work for fairly long periods.
你会立即感到症状减轻一些，给你足够的精力可以工作相当长的时间。
Power savings alone is a great reason to undertake server consolidation projects, but there are other energy factors at work.
节约能耗本身就是一个进行服务器整合的主要理由，但还有其他的能源因素在起作用。
Thus, people who need to exert much energy in their work will find relaxation most desirable in leisure.
因此，需要在工作中消耗大量精力的人会发现最想要在休闲中放松。
"All of our work in energy is on clean energy, and all of it's growing," says Taylor.
“我们在能源领域开展的所有工作都围绕清洁能源，而且工作力度在不断加大，”泰勒说。
Certain industries are proving particularly popular this year, notably the energy sector, where MBAs aspire to work in alternative energy.
今年，一些产业特别受欢迎，尤其是能源行业，MBA毕业生们非常渴望在替代能源领域工作。
The best graduates want to work for telephone and energy companies because they pay well, thanks to the profitability that comes from market power.
最优秀的毕业生希望就职于电话和能源公司，是因为，由于能够从市场支配力中获利，这些公司的待遇优厚。
"Study is a difficult job that needs a great amount of energy, time, and work," said Li.
“学习其实是一项艰苦的工作，它需要大量精力、时间和辛劳，”李淑娟说。
For example, if you work in the energy industry you might know more than most about the important factors that determine the price of energy.
例如，你在能源工业工作，你就可能对决定能源价格的主要因素更加清楚。
We work so hard, and I'm sure there must be a lot of energy going into that work.
我们这么努力工作，相信一定在做功是花了很多能量。
You can take heat energy and convert it to work energy and vice versa, and it doesn't say anything about that you have to waste heat if you're going to transform heat into work.
你可以把热能便成功，也可以反过来，但它对于如果你要把热变成功，就必须浪费热量这件事只字未提，它只是说这是能量。
That allows it to work out how quickly energy was released by the earthquake, and thus how fast the rupture propagated.
这一信息可帮助计算地震能量释放速度，并以此计算岩层断裂速度。
Since January, 185 companies hired lobbyists to work on energy issues, MoneyLine records show.
根据MoneyLine的报告显示，一月份以来，185个公司雇佣了致力于能源问题的说客。
All batteries work by converting electrical energy into chemical energy during charging, and then converting it back into electricity as the battery is discharged.
所有电池是靠充电的同时通过将电能转换为化学能而工作，随后，当电池放电的时候，再将化学能转化为电能。
All batteries work by converting electrical energy into chemical energy during charging, and then converting it back into electricity as the battery is discharged.
所有电池是靠充电的同时通过将电能转换为化学能而工作，随后，当电池放电的时候，再将化学能转化为电能。
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