But delays and inefficiencies in air travel are due in large part to an outdated traffic-control system that still relies on slow, ground-based radar stations and repetitive voice communication.
不过航空运输延迟和低效的主要原因还是过时的空中交通管制——一套依靠地面控制、反应迟缓的雷达站和不断重复的语音通讯建立起来的体系。
In the beginning, each additional person on the highway does not slow down traffic because there is enough "slack" in the system to absorb the extra users.
开始时，在高速公路上每增加一辆车辆都不会使交通变缓，因为这个系统中还有足够的空间来容纳更多的用户。
The present Air Traffic Control (ATC) Geographical Information System (GIS) is very slow in displaying the map due to traversing the whole model to draw all units.
现有空中交通管制(atc)地理信息系统(GIS)重绘时遍历整个地图模型来绘制所有图元，影响了地图显示的速度。
The present Air Traffic Control (ATC) Geographical Information System (GIS) is very slow in displaying the map due to traversing the whole model to draw all units.
现有空中交通管制(atc)地理信息系统(GIS)重绘时遍历整个地图模型来绘制所有图元，影响了地图显示的速度。
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