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A simple water pump is helping to improve the lives of poor families in several Asian and African countries.
VOA: special.2009.08.17
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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。
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You're taking the air inside of the pump and you're compressing it. You're doing it so fast that there's not enough time for heat to come out of the gas that's inside the pump towards the walls of the pump.
你把空气吸进气筒里并且压缩它,你的动作很快以至于,没有足够的时间让热量,从气筒里面跑出来,传递到气筒壁上。
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The treadle pump is easy to build from bamboo or other wood and two metal cylinders with pistons.
VOA: special.2009.08.17
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So then to encourage you to "Pump up your room" they had music playing and this is the kind of music that they had on that flatbed truck.
然后还鼓动你去"律动你的房间",他们还放着音乐,这就是他们在那辆卡车上播放的音乐类型
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As a final step there are plans to pump in mud and cement from below through relief wells.
VOA: special.2010.08.07
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So nowadays they just pump you full of some drug to get you really happy and so you're really stoned out of your head, you're and say this isn't so bad.
所以现在他们让你服用大把的药物,让你飘飘欲仙,而你也因为吸食了毒品而变得神志不清，所以你会说，这方法还挺管用的。
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He's not breathing and we're trying to pump him but he's not -- " "OK,OK.How old is he?"
VOA: special.2009.06.27
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What if you could take just a pump that's capable of continuously administering insulin at various rates and connect it to a sensor that's able to continuously measure the sugar level in your blood?
如果我们安装一个泵,能够持续的动态控制胰岛素输出,并把这个泵连接到一个,持续监测体内血糖水平的变化的传感器上
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They cannot harm themselves because the amount of painkiller in the pump is carefully measured and limited.
VOA: special.2010.05.04
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But you don't compress it so quickly that you're not in there reversible process so you compress that if you were to feel the temperature of the air and you can feel it through the nozzle gives you an idea of the temperature of the air inside your bicycle pump.
但是压缩速度,也不能太快,否则就不是,可逆过程了,这样当压缩气体时,从喷嘴可以感受到,内部气体的温度。
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Between thirty and thirty-five women used each system to pump water from the ground or a stream.
VOA: special.2010.01.11
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And that really is the bicycle pump.
这正是自行车打气筒的情况。
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How many hours a day the pump needs to be operated depends on the season and how much water is needed for crops.
VOA: special.2009.08.17
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And in sub-Saharan Africa, where only four percent of the land is irrigated, buying a small pump can make a big difference.
VOA: standard.2010.08.09
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But,serious differences remain. The U.S.and Britain want other governments to pump more money into their economies as stimulus.
VOA: standard.2009.04.01
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It would pump gas from the Caspian Sea region through Turkey,Bulgaria, Romania and Hungary to Austria.
VOA: standard.2009.05.11
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Foreign aid paid for the pump that brings up the water and fills this reservoir.
VOA: standard.2009.12.10
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As for cost,Dr.Miller says patients with a heart pump spend less time in a hospital and have lower hospital costs than patients with severe heart disease.
VOA: standard.2010.01.27
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For a small farmer, replacing a bucket with a pump can lead to cultivating a wider variety of crops and creating work for family and neighbors.
VOA: standard.2010.08.09
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He's not breathing, and we're trying to pump him but he's not,he's not.
VOA: standard.2009.06.26
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BP says a more complete solution is needed. The next step is to try to pump mud and other materials to the sea floor and block the well.
VOA: standard.2010.05.17
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The computer program continuously takes in data from a glucose monitor inserted into a patient's vein and calculates the dose of artificial insulin that needs to be infused through an insulin pump.
VOA: standard.2010.04.15
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"Our anticipation is that it will be another seven to ten days to complete all of the preparations that we need to exercise this option and then at that point, we'll pump the kill mud and hopefully have this well killed, and well shut off, and the flow shut off."
VOA: standard.2010.05.17
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