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Continue to ChatIon thrusters deliver effeciency in air propulsion https://www.digitalreviews.net/news/news-archives/ion-thrusters-deliver-effeciency-in-air-propulsion/
Ion thrusters deliver effeciency in air propulsion https://www.digitalreviews.net/news/news-archives/ion-thrusters-deliver-effeciency-in-air-propulsion/