同时对流层延迟也是GPS气象学、数值天气预报所关心的焦点问题。
At the same time troposphere delay is also the focus of GPS meteorology and numerical weather forecasting.
它是有两个属性的简单的数据bean：表示预报所跨越的时段的String和给出预报的String。
It is a simple data bean with two properties: a String indicating the time period covered by the forecast and a String giving the forecast.
一种是需要经济运行的实时模拟，由庞大的数据库支持，运行很像目前在达拉斯市和德国北莱茵-威斯特法利亚地区所使用的交通预报模型。
One vision is a real-time simulation, fed by masses of data, that would operate rather like the traffic-forecasting models now used in Dallas and in the North Rhine-Westphalia region of Germany.
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