Breaking with convention, Honda's engineers positioned the engines above the wings rather than below, allowing for greater speed and fuel economy and a roomier cabin.

本田的工程师们将飞机发动机安放在了机翼上方，而非下方，这使得飞机速度更快、耗油更低，同时机舱也更为宽敞。

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The fuel cells could be used as auxiliary power units to produce electricity when an aircraft is on the ground, for example, allowing its engines to be turned off.

燃料电池可以当做辅助供电单元使用，比如，当飞机在地面时，可以允许关闭飞机发动机。

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The use of high-strength alloy steel parts is economical because it reduces weight, thereby allowing for more efficient aerodynamic surfaces and providing the potential for increased payload and fuel.

高强度合金钢有重量轻的优势，使用高强度合金钢就比较经济实惠，从而赢得更有效的气动表面并有望增加承载能力和燃油储量。

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Every year the US has put certain conditions regarding North Korea's behaviour - such as allowing inspections - on budgeting for the fuel aid.

BBC: Analysis: N Korea's nuclear deal

Allowing for the quick change means that a big car can get reasonably good fuel mileage in ordinary driving but rev high when more performance is wanted.

CNN: Fat and fast: High-performance gets big