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。

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

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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.

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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.

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