篇篇学之7:Hydroelectricity 2
scuyangjing
2007年08月18日 22:00:49
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The energy that may be extracted from water depends not only on the volume but on the difference in height between the water impoundment(or source) and the water outflow.This height difference is called the head.The amount of potential energy in water is directly proportional to the head.For this reason,it is advantageous to build dams as high as possible to produce the maximum electrical energy.The machanical power of falling water is an age-old tool.Of all the renewable energy sources that generate electricity,hydropower is the most often used.It is one of the oldest sources of energy .

The energy that may be extracted from water depends not only on the volume but on the difference in height between the water impoundment(or source) and the water outflow.This height difference is called the head.The amount of potential energy in water is directly proportional to the head.For this reason,it is advantageous to build dams as high as possible to produce the maximum electrical energy.The machanical power of falling water is an age-old tool.Of all the renewable energy sources that generate electricity,hydropower is the most often used.It is one of the oldest sources of energy .

WORDS:
extract 获得 water impoundment 库水 proportional 成比例的 generate 产生
cocolike2001
2007年08月20日 08:25:44
2楼
感谢 scuyangjing版主继续坚持,给大家提供一个学习的好平台
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lucky-hill
2007年08月22日 01:40:27
3楼
不错! 收藏了! 
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xingshi2003jim
2007年09月04日 15:30:28
4楼
The energy that may be extracted from water depends not only on the volume but on the difference in
height between the water impoundment(or source) and the water outflow.This height difference is called the head.The amount of potential energy in water is directly proportional to the head.For this reason,it is advantageous to build dams as high as possible to produce the maximum electrical energy.The machanical power of falling water is an age-old tool.Of all the renewable energy sources that generate electricity,hydropower is the most often used.It is one of the oldest sources of energy .
水中能量不仅取决于它的体积,还在于库水和出流的高差。这高差被称为水头。水中潜在能量有多大和这个水头直接成比例。因此,建造尽量高的可以获得最大电能的大坝是有利的。降水型机械电站是个悠久的工具。在所有可持续能源中,水力是最常用的,也是最古老的一种能量源。
WORDS:
extract 获得 water impoundment 库水 proportional 成比例的 generate 产生
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xingshi2003jim
2007年09月04日 15:32:23
5楼
水中能量不仅取决于它的体积,还在于库水和出流的高差。这高差被称为水头。水中潜在能量有多大和这个水头直接成比例。因此,建造尽量高的可以获得最大电能的大坝是有利的。降水型机械电站是个悠久的工具。在所有可持续能源中,水力是最常用的,也是最古老的一种能量源。
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alisonwen
2007年11月16日 16:23:41
6楼
版主,怎么没有下篇了呀?
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chen_3673
2007年12月25日 23:55:00
7楼
库水是什么意思?
应该翻译成
水的能量不仅取决于它的体积,还在于水库的库容和水流出流的高差。这高差被称为水头。水流的能量和水头直接成比例的关系。因此,建造尽量高的坝以获取最大的能量是很有利的。利用水的落差的机械性能是个很古老的方式。在所有可持续能源中,水力是最常用的,也是最古老的一种能量源。
不知这么翻译对不对?
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yangxuzhen
2008年04月02日 17:00:21
8楼
有溢洪道专业英语 方面 ?谢谢
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q197103020345121
2008年04月03日 14:21:29
9楼
受点熏陶。不错不错,希望多发点,继续学习。多谢多谢。
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