In space, however, these rockets are inefficient-they burn through huge quantities of fuel while generating more thrust than necessary.

但是，在太空这些火箭的效率很低——它们通过燃烧大量的燃料，产生了比需要更多的推力。

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Retail sales jumped by 2.3% in real terms in October, suggesting that domestic demand may provide more thrust to an economy that is overly dependent on exports.

现在的经济增长过分地依赖出口，而10月份零售额的实际增长骤升至2.3%，这意味这内需会推动经济增长。

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The JT8D-219 engine will enable a re-engined Joint STARS aircraft to operate with more thrust, while consuming less fuel, compared to the TF33 engines originally installed.

JT8D-219发动机将使升级后的联合星飞机引擎比原先安装的TF33发动机拥有更多的推力，消耗较少的燃料。

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So Boeing is considering various compromises, such as a small extra engine in the tail, to give the aircraft more thrust.

ECONOMIST: Aircraft making

Retail sales jumped by 2.3% in real terms in October, suggesting that domestic demand may provide more thrust to an economy that is overly dependent on exports.

ECONOMIST: Germany and the euro

Yet Robert Forward, one of the committee's members, has suggested a way to squeeze even more thrust from such a sail: by passing ten times closer to the sun.

ECONOMIST: Rockets are not the only way to travel through outer space