楼主: jl2jn
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[财经英语角区] 20120425 Follow Me 349 Feeling peaky:The economic impact of high oil prices [推广有奖]

21
bengdi1986 发表于 2012-4-25 19:53:09
zhdefei 发表于 2012-4-25 08:37
Although the oil price can impact  the economic development,  the mainstream economists are  interes ...
After all, the oil price is one of most important factors which affects the macro-economy! That doesn't cater the economists' taste~

22
jl2jn 发表于 2012-4-25 22:00:08
mu_lianzheng 发表于 2012-4-25 10:28
Feeling peaky
感觉憔悴
翻译的很不错,呵呵 EROI是 energy return on investment,意思是“能源投入回报值”,是用能量单位,如焦耳,而非货币单位,如多少人民币,来衡量能源投入与能源产出的关系。例如,石油是一种能源,其所产生的能量能够做功,但生产石油也需要消耗各种能量,用产出的能量除以投入的能量,就是该能源生产的EROI。改值反映了能源品质的变化及生产难度的变化。以石油为例,在上个世纪70年代左右,石油的EROI在100多以上,但现在已经降到20多了,这种变化的原因就是廉价易采石油资源的减少,取而代之的是昂贵难采的非常规油气,这种变化意味着可供人类使用某类重要的“净能量”(能源并不能做功,而是能源所具有的能量能够做功)的减少。这个应该引起经济学家的注意。
一味的关注石油产量等绝对量的增加是没有意义的,因为即使现在的绝对量增加了,但是其净能量实际上已经达到峰值或开始减小,这个也应该大家的注意。
上述这些就是EROI的内涵。
谦虚学习,望各位大虾多多指导

23
jl2jn 发表于 2012-4-25 22:05:03
sailingyf 发表于 2012-4-25 09:39
Oil crisis is coming! New clean energy is very needed, but it's much easy to say than to find new en ...
yes, i agree your point. new energy is good and have a bright future, but it need much more cost and a long time to research and use it.
谦虚学习,望各位大虾多多指导

24
liujingqing 发表于 2012-4-25 23:00:32
High oil price means not only the  infrequent of oil but also the growing demand。In anther way ,the
increase in quantity of currency  gives oil a high—made price。To this problem ,we should not be surprised,as this is just one inevitable tendency。

25
whachel1976 发表于 2012-4-28 23:32:58
"Energy return on energy invested', I don't know whether it is the conservation of energy theory. Imagine a world where we can make use of the exhaust gas emitted by the tailpipes of cars to operate machines, how fascinating it will be!

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