Even normal jet engine airplanes produce noise pollution, but Concorde could do harm to people's ears.

即使普通的喷气式飞机也会产生噪音污染，但协和式的噪音飞机对人的耳朵有害。

youdao

In a test flight from London to Amsterdam, the airline hopes to show it can produce less carbon dioxide than normal jet fuels.

航空公司希望从这次由伦敦飞往阿姆斯特丹的试飞当中证明生物燃料比普通的飞机燃料排放的二氧化碳要少得多。

youdao

Psychologists say that using limited holiday time can lead to resentment and your sleeping patterns are disrupted, just like normal jet lag.

心理学家表示，使用有限的假期时间会使人心生愤恨，睡眠模式也会被打乱，就像平时的飞行时差那样。

youdao

This blend produced by SkyNRG has been recertified to normal jet fuel standards and can be safely used without modifying the aircraft's systems.

ENGADGET: Air Canada embarks on its first biofuel-powered flight from Toronto to Mexico City

The engine allows a spaceplane to take off from a runway like any normal jet, and go as fast as Mac 5.5 on a jet-like engine.

FORBES: As SpaceX Launches, Hybrid Engine May Have A Cheaper Solution?To Space Travel

Early indications are that the Lion Air jet's approach was normal until perhaps the last minutes of the flight, said safety experts who have reviewed publicly available data.

WSJ: Weather Scrutinized as Possible Cause of Lion Air Crash