But now the notion of exploiting trees for fuel is being updated with a high-tech twist. The idea is to make ethanol, a biofuel that usually comes from maize (corn) or sugar cane, from trees instead.

而如今开发树木作燃料的讨论与高科技密切相关，这就是从树木中提取乙醇，取代通常是从玉蜀黍（玉米）或蔗糖中提取的一种生物燃料。

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Styled to look like a hot rod of the past and to sip fuel like a car from the future, Louisiana Tech University's Roadster took home one of two grand prizes in the Shell Eco-marathon Americas.

看起来像一部改装的高速跑车而却极其省油，路易斯安那科技大学的这款跑车获得了壳牌美洲环保马拉松大赛两项大奖之一。

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Hydrogen fuel cells are used in spacecraft and other high-tech applications where a clean, efficient power source is needed.

氢燃料电池中使用的航天器和其他高科技的应用场合一支廉洁，高效的电源是必要的。

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The earnings calendar remains light today, with notable reports arriving from Fuel- Tech (FTEK), United National Foods ( UNFI), AeroVironment ( AVAV), Metabolix (MBLX), and Pandora Media (P).

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The critical fuel for tech growth, educated labor, is now expanding faster in places like Columbus, Austin, Raleigh, Dallas and Houston than in Boston, San Jose and San Francisco.

FORBES: The New Places Where America's Tech Future Is Taking Shape

As an example, Pell pointed to platinum, a valuable commodity which is a critical part of catalytic converters for cars as well as clean-tech fuel cells.

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