By 2007, DuPont was saving $2.2bn a year through energy efficiency, the same as its total declared profits that year.

直至2007年，杜邦通过提高能源效率，每年能节省22亿美元，这与其当年公布的总利润相当。

Using alternative fuels and improving energy efficiency is thus both an ecological necessity and a technological challenge.

因此，使用替代燃料和提高能源效率既是生态需要，也是技术挑战。

When we prevent physical waste, increase energy efficiency or improve resource productivity, we save money, improve profitability and enhance competitiveness.

当我们防止物质的浪费、提高能源效率或提高资源生产率时，我们就节约了资金、提高了盈利能力并增强了竞争力。

By 2007, DuPont was saving $2.2 billion a year through energy efficiency, the same as its total declared profits that year.

到2007年，杜邦公司通过提高能效一年节省22亿美元，和它那年公布的总利润一样多。

But energy efficiency will be the key.

但是能源效率将是关键。

Both need advances in energy efficiency.

两国都需要提高能效。

Energy efficiency can be improved very quickly.

能源效率可以很快提高。

Many greens pin their hopes on energy efficiency.

许多环保人士寄希望于能源高效。

Technology has done more than improve energy efficiency.

科技带来的可不单是能源效率的提高。

More energy efficiency could reduce oil demand growth.

提高能效会减缓石油的需求增加的速度。

Both big parties have made energy efficiency a priority.

两党都把提高能源利用率作为优先考虑的事务。

This often coincides with gains in energy efficiency, too.

这也常常与能效的提高不谋而合。

Energy efficiency is also proving a win for some vendors inhouse.

能源效率也证明了一些内部供应商的胜利。

The goal of the project is driver safety and energy efficiency.

该项目的目标是保障驾驶者的安全和节约能源。

Contributing to meeting Europe's energy efficiency targets for 2020.

有助于实现欧洲2020年的能源效率目标。

A high focus will be placed on energy efficiency inside the Citadel.

‘城堡’内的节能将成为重点关注的焦点。

You probably look at energy efficiency labels before buying a new laptop.

可能你会在购买新笔记本电脑时先看看能源效率。

The program certifies hundreds of consumer products for energy efficiency.

该计划对数百种消费产品的能源效率进行认证。

Energy efficiency measures in buildings offer significant cost savings.

房屋能效措施可极大的节约成本。

Japan tops most global comparisons of energy efficiency in wealthy nations.

在能源利用率的全球比较上，日本在许多项都位发达国家之首。

Air quality and energy efficiency have been outweighed by reverence for the car.

对汽车的推崇，远远胜过了对空气质量和能源效率的关心。

“The further you go the harder it gets to increase energy efficiency, ” Xie said.

“要想更进一步，我们必须更加艰难的提高能源效率”，解先生表示。

Evaluating the energy efficiency of a product or a service is another complex task.

另一项复杂工作是评估产品或服务项目的节能效益。

I saw energy efficiency technologies that will help us to tackle climate change.

那里的节能技术将有利于我们更好地应对气候变化。