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The Next Generation Air Transportation System of the United States: Vision, Accomplishments, and Future Directions https://www.engineering.org.cn/engi/EN/10.1016/j.eng.2020.05.026
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The Next Generation Air Transportation System of the United States: Vision, Accomplishments, and Future Directions https://www.engineering.org.cn/engi/EN/10.1016/j.eng.2020.05.026
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