The International Energy Agency, an intergovernmental energy advisor, has projected an almost in conventional oil production by 2020 and the potential for a serious gap between supply and demand by 2015.

VOA: standard.2009.10.20

So, this is what goes on in an electrolysis cell, and it works thanks to input energy from a power supply shown here.

所以，这是在一个电化学电池中发生的，它是靠输入的能量工作的,从和这个类似的电源输出的能量。

麻省理工公开课 - 固态化学导论课程节选

But they spent a lot of time, energy, and money on being sure that they would have a supply of water to hold them for a long siege.

他们花费了大量的时间,精力,和金钱来确保,在长期的围城中他们可以获得足够的水源

耶鲁公开课 - 古希腊历史简介课程节选

"Today,we have signed an agreement, which broadens the reach of our cooperation beyond the supply of nuclear reactors to areas of research and development and a whole range of areas of nuclear energy,".

VOA: standard.2009.12.08