A plane was waiting at the airport with its engines running but this was just one of the decoys.

一架飞机等在机场，引擎已发动，而这只是诱饵中的一个而已。

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No evacuation is commenced, and the airplane then sits with its engines running for more than three minutes.

没有开始任何的撤离，飞机就在原地任由发动机狂转了3分多钟。

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Bigger engines running hotter may deliver greater fuel efficiency, but they are also testing the limits of modern materials.

运行温度更高的较大引擎可能带来更好的燃油利用率，但它们同时也测验着现代材料的极限。

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Sometimes there are multiple trucks, of course, all with the engines running constantly while they sit unmoving.

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Already Nanogate is extending its technology to industrial uses to keep machines and engines running cleanly and efficiently to eliminate downtime.

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He said that at one point, crews at RAF Coningsby were at a stage of five minutes readiness, with engines running.

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