He said he wanted around 20-50 taxis in operation by then as part of the Black Cabs Go Green programme, as well as 150 hydrogen-powered buses.

他说希望届时约有20 - 50部计程车投入运营，作为黑色出租车走向绿色计划的一部分，另外还有150辆氢动力巴士。

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Cars, trains, ships, and other forms of transportation would use hydrogen-powered fuel cells, and aircraft would run on hydrogen fuel.

汽车、火车、轮船及其他交通工具将使用氢动力燃料电池，而飞机将采用氢燃料。

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But the promise of hydrogen-powered personal transport seems as elusive as ever.

但是氢动力个人交通工具的前景看起来和以往一样扑朔迷离。

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If you travel by bus in Sao Paulo,Brazil these days your vehicle may be powered by hydrogen fuel cells.

VOA: special.2009.09.07

If hydrogen powered cars are next in the evolution of the automobile, the City Car could be the step after that.

CNN: Reinventing the wheel

But hydrogen-powered cars cannot exist without hydrogen filling stations, and vice versa.

CNN: Hydrogen fuel-cell cars look to overtake electric autos

Meanwhile, students at the University of Birmingham recently built the UK's first hydrogen-powered locomotive.

ENGADGET: Inhabitat's Week in Green: a locomotive that runs on hydrogen, honey detective and a 30 mph-capable hover bike