While demand for renewable energy is growing, those supplies currently meet just seven percent of world energy needs.

VOA: standard.2010.04.21

The electron's going to come out of that highest occupied atomic orbital, that one that's the highest in energy, because that's going to be the at least amount of energy it needs to eject something.

这个电子应该是从,最高的被占据轨道上出来的，它的能级是最高的，因为这样的话发射出它,只需要消耗最少的能量。

麻省理工公开课 - 化学原理课程节选

Despite the setback,he was upbeat about the future energy needs of the small Baltic nation.

VOA: standard.2010.01.01

By 2013,Lithuania wants to have a new natural-gas power plant, but experts caution that this will not be enough to meet the country's energy needs.

VOA: standard.2010.01.01

Washington State Representative John McCoy says renewable energy needs a bigger push.

VOA: standard.2010.03.23

Buchanan Renewables President Joel Strickland says it is a low-cost, intermediate solution to Liberia's energy needs, while repairs to the Mt.Coffee hydroelectric facility are at least five years away.

VOA: standard.2009.09.13

It provides the energy for feelings that demand the immediate satisfaction of needs and desires.

VOA: special.2010.04.13

The needs of the present took all her energy.

VOA: special.2009.09.05

adaptations,coastal protections Among a host of necessary need to be built, crops threatened by drought need to be modified, health care needs to be stepped up, and new clean energy solutions need to put in place.

VOA: standard.2009.12.11

President Obama says he inherited massive government debt and a sinking economy from his predecessor,President Bush, and that only drastic action will correct the situation while investing in the nation's needs pertaining to health care, energy independence,and education.

VOA: standard.2009.03.15

Sana'a University Economics Professor Taha al-Fusail says the energy sector may be a lifeline, but Yemen needs to diversify its economy if it wants to grow in a way that will fund the government and feed the people.

VOA: standard.2010.04.20

Before a meeting on Tuesday with Democrats on the House of Representatives Energy and Commerce Committee, one of five House and Senate panels preparing legislation, the president said again that Congress needs to put politics aside and get the job done.

VOA: standard.2009.07.21