Anslyzing energy efficiency of system and comparing conventional energy simply, The author put forward efficiency-cost ratio of project and pre-evaluation of payback time.

对系统能效分析及与常规能源简单对比，提出项目费效比与回收年限预评估。

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But the economic malaise and energy-efficiency programs in the U.S. brought forward the date of the milestone, Mr. Birol said.

不过比罗尔说，美国的经济低迷和节能计划把这一里程碑的时间提前了。

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Finally, countermeasure is put forward to enhance its efficiency mainly by improving its administration.

提出了以改善公司治理为核心的提高公司效率的对策。

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An IBM-led group is working on a new collector dish that could avoid that damage while taking a big step forward in solar power efficiency.

ENGADGET

Lexus: Although Lexus has suffered a slew of recalls recently, we expect it to maintain its leading U.S. market share going forward, driven by fuel efficiency, attractive financial incentives and pricing, and a very strong brand associated with both luxury and value.

FORBES: Lincoln The Laggard Brings Up The Rear Of Luxury Autos

Another step forward has been organic LEDs (OLEDs) which also promise greater efficiency and better light than older, incandescent bulbs.

BBC: Plastic bulb development promises better quality light