Efficiency is crucial in such cells if they are ever to be a substitute for existing methods of mass power-generation, such as coal and gas.

对于这些太阳能电池来说，要想取代现有的大规模发电方法，如煤炭和天然气，最关键的是效率。

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After defining the target of the extracting water resource demonstration on bio-mass power cogeneration plant in frigid zone, the strategy and method are explicitly analyzed and summarized.

在明确论证目标的基础上，对基于中水的寒区生物质热电厂取水水源论证的论证思路和方法进行了详细分析、梳理和归纳。

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With new technological advances and mass production, projected cost declines should make wind power one of the world's cheapest ways to produce electricity.

随着新的技术进步和大规模生产，预计成本的下降将使风力发电成为世界上最便宜的发电方式之一。

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"This man actually said in February 2003, Tony Blair addressed the house and said that Saddam can stay in power if he hands over his weapons of mass destruction,".

VOA: standard.2009.12.13

That quantity in parenthesis, I have a mass which is a positive number. Something raised Something raised to the fourth power has got to be positive.

顺便说一句,质量这个量是个正数,四次方的值,肯定是正数。

麻省理工公开课 - 固态化学导论课程节选

As momentum changers go, I think we can all agree the 30 minute mass power outage now goes to the head of the class.

FORBES: Connect

By combining data from the two steps an equation linking mechanical power (dependent on mass) to electrical power (calculated by multiplying voltage by current) can be derived.

ECONOMIST: Weighing a kilogram

Along with millions of other out-of-date and unsecured PCs strung together by the Internet--what Corman calls "the leper colony"--those machines represent a combined mass of computing power responsible for most of the Net's spam e-mails, much of its click fraud, and the vicious "denial of service" attacks that can knock sites offline and even destroy online businesses altogether.

FORBES: Zombie Storm Rising