“美国下一代航空运输系统”的概念、定义、翻译、参考文献-科学参考

单词	美国下一代航空运输系统
释义	美国下一代航空运输系统 Encyclopedia 工学〔智能空管〕释 Next Generation Air Transportation System; NextGen美国下一代航空运输系统美国联邦航空管理局（Federal Aviation Administration; FAA）于2007年开始启动，并计划在2025年之前实现国家空域的安全性、效率、容量、可预测性和灵活性，使航班从出发至到达的过程发生根本性蜕变的现代化国家空域系统。
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科学参考收录了854744条科技类词条，基本涵盖了常见科技类参考文献及英语词汇的翻译，是科学学习和研究的有利工具。