A new hydrogen-powered car, whose designs will be "open source" and posted for free use on the web, was unveiled today in London.

今天，一款新型氢动力汽车在伦敦首次亮相，其设计方案将采用“开源”方式，在网上发布供免费使用。

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Filling a typical fuel tank of 75 litres-about 20 American gallons-with hydrogen at room temperature and pressure will take a hydrogen-powered car only about a kilometre or so.

在室温和压强(常压)下，装满氢的75升(大约20加仑)标准燃料箱只能驱动一辆氢动力汽车行使大约1公里。

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Like other hydrogen cars, the Riversimple Urban car (RUC) is powered by a fuel cell that combines hydrogen with oxygen from the air to release energy and nothing more toxic than water.

和其他氢能源车一样，Riversimple Ur ban Car (RUC)采用燃料电池，电池将来自空气的氢和氧进行混合释放能量，除了水不排放任何有害物质。

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Filling a typical fuel tank of 75 litres about 20 American gallons with hydrogen at room temperature and pressure will take a hydrogen-powered car only about a kilometre or so.

ECONOMIST: Chicken feathers could provide a high-capacity store

GM--its market share dropping like a heavy molecule, its bonds near junk, its vehicles piling up in dealer lots-is making its single biggest research bet on developing a hydrogen-powered car.

FORBES: Magazine Article

This week it unveiled a prototype version of its 7-Series saloon car that has a hydrogen-powered engine.

ECONOMIST: Hydrogen-powered cars