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。
But in the short term, hydrogen vehicles in the UK are likely to be powered by fuel derived from oil.
今天，我们已经可以在路上看到混合动力汽车和以氢燃料为动力的公共汽车。
Today we can already see hybrid cars and hydrogen-fuelled buses on our roads.
建造以核燃料为动力的火箭发动机所需要的技术离目前的技术能力并不太远。
The technology required to build a rocket motor powered by nuclear fuel is not far beyond current capabilities.
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