空中交通流量管理系统(atfm)对于适应飞行量的不断增长、减少延误、充分利用空域和地面资源，具有战略性意义。
Air traffic flow management (ATFM) system has a strategic significance on keeping pace with the increasing of flight flow, reducing delays and making full use of air space and the ground resources.
简单介绍了空中交通流量管理和决策支持系统的特点，对一种四阶段规范化数据建模方法加以改进。
Features of air traffic management and decision support system are introduced. Then, an improved four-stage standardized modeling method is proposed.
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