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。
The futuristic sports car is a hydrogen-powered, zero emission, fuel-celled supercar.
这部未来风格的跑车是一部氢动力零排放燃料电池超级汽车。
Boeing, for one, has a hydrogen-powered UAV called the Phantom Eye that will fly for four days at 20,000 metres (66,000 feet).
例如，波音已经开发了一款名为“幽灵之眼”的氢动力无人飞行器，它能够在20000米(66000英尺)高空连续飞行四昼夜。
Boeing, for one, has a hydrogen-powered UAV called the Phantom Eye that will fly for four days at 20, 000 metres (66, 000 feet).
例如，波音已经开发了一款名为“幽灵之眼”的氢动力无人飞行器，它能够在20000米(66000英尺)高空连续飞行四昼夜。
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。
Then there are all-electric cars that don't use any petrol at all, and hydrogen-powered ones, some of them using fuel cells.
还有完全不用汽油的全电力车以及氢动力车，其中一些使用燃料电池。
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。
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。
Honda yesterday unveiled the auto industry's first hydrogen-powered fuel-cell vehicle destined for retail customers, who are due to receive the cars in mid-2008.
本田(Honda)昨日发布了汽车业第一部面向零售客户的氢动力燃料电池汽车，定于2008年中交付使用。
Hydrogen-powered cars emit no carbon dioxide, but producing hydrogen requires energy, and if that energy comes from coal-fired power plants, then the problem has not been solved.
氢气动力汽车不排放任何二氧化碳，但是制造氢气需要能量，且如果能量来源于火力发电厂，那么问题还是不能得到解决。
London design firm Seymourpowell unveiled its vision for a future sky hotel — a vertical airship lifted by hydrogen and powered by solar energy.
来自伦敦的设计公司Seymour powell公布了其对于未来的天空酒店的展望——一部以氢气托起，以太阳能为动力的垂直飞艇。
Rivals marched in the opposite direction, developing cars powered by hydrogen and electricity.
其竞争对手则向另一个方向努力，开发以氢和电力为动力的汽车。
Will the motor be powered by a new kind of petroleum product or by hydrogen?
发动机是用一种新的石油产品还是用氢气来驱动？
It is powered by a hydrogen-electric, emission-free, fuel cellsystem located at the rear.
这款零排放汽车由氢-电混合动力驱动，燃料电池位于后部。
A hydraulic drive-train is attached with several powerful electricmotors and powered by hydrogen fuel cells.
Landstorm装有一个液压传动系统，与几个功率强劲的电动发动机相连，由氢燃料电池提供动力。
It is powered by a hydrogen fuel cell that generates water as the final mechanical waste and can be collected in a holding tank for later use.
该款车动力来源是氢燃料电池，电池产生水并被作为回收物储存在一个存储器内以备之后使用。
But in the short term, hydrogen vehicles in the UK are likely to be powered by fuel derived from oil.
但是短期内，英国的氢燃料汽车可能还是以石油衍生燃料为动力。
Vehicles powered by hydrogen fuel cells are, in theory, pollution-free but their popularity has been compromised by the difficulty of generating hydrogen cheaply and plentifully.
从理论上讲，氢燃料电池驱动的汽车是无污染的，但由于氢难以廉价、大量地生产，这种汽车在普及方面打了折扣。
One experimental clean-energy car runs on natural gas. Another USES ethanol distilled from corn. A third has a zero-emissions electric motor powered by a hydrogen fuel cell.
一辆尚处于实验阶段的清洁能源汽车依靠天然气行驶。另一辆使用从谷物蒸馏而来的酒精。第三辆则装有由氢燃料电池提供能量的零排放发动机。
The present situation of fuel-cell-powered vehicles in US, Federal program for the development of fuel cells, hydrogen refueling stations and different applications of fuel cells are reported.
介绍美国开发燃料电池的现状及联邦开发计划纲要、加氢站和燃料电池的各种不同的应用途径。
Phantom Eye has a 150-foot wingspan and is powered by two 2.3-liter, four-cylinder hydrogen engines that each provide 150 horsepower.
“幻影眼”无人机拥有150英尺的翼展，由两个2.3升四缸氢燃料发动机提供动力，每个发动机提供150马力的动力。
Beijing's efforts to introduce some forms of green technology, such as hydrogen-fuel-cell buses and solar-powered Olympic Games facilities, have also been too limited to have much effect, critics say.
批评人士指出，虽然北京为引入某些绿色科技付出了努力，例如使用以氢燃料电池为动力的公共汽车以及为一些奥运场馆安装太阳能设备等，但这样的措施非常有限，成效不大。
Beijing's efforts to introduce some forms of green technology, such as hydrogen-fuel-cell buses and solar-powered Olympic Games facilities, have also been too limited to have much effect, critics say.
批评人士指出，虽然北京为引入某些绿色科技付出了努力，例如使用以氢燃料电池为动力的公共汽车以及为一些奥运场馆安装太阳能设备等，但这样的措施非常有限，成效不大。
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