铼可以用来制造喷气式发动机的耐高温合金部件，也是高能量的无铅汽油的成分。

Rhenium is used to make high-temperature alloys for jet engine parts and in high-octane, lead-free gasoline.

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2009年，通用电气和NASA（美国航空航天总署）合作，重新开始19世纪80年代搁置的一项工作，继续一种颠覆传统的无涵道风扇发动机实验。

In 2009 GE, working with NASA, America’s space agency, picked up work it had largely set aside in the 1980s on a radically different sort of engine called an unducted fan.

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这个全球最大的汽车生产商正在为拓展混合动力型汽车的市场份额而开发无钕电动发动机。

steer clear - To stay away from; avoid. The world’s largest carmaker is developing a neodymium-free electric motor for its expanding range of hybrid cars.

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And Manifest Destiny was the engine of capitalism, make no mistake.

而且,命运天定思想,是资本主义的发动机,这点无容置疑

耶鲁公开课 - 美国内战与重建课程节选