As compared with the weather map analysis and prognostic method, it is more direct and simple, hence easy to use in basic weather stations for routine operation.
该方法与天气图形势分析预报法相比，直观性比较强，各物理因子的计算比较简单，便于在基层台站日常预报业务中使用。
Untill 1957, the number of weather stations in the whole country reached to 1647 and the national basic weather net was formed.
至1957年，全国气象台站已达1647个，初步组成了全国基础气象台站网。
Untill 1957, the number of weather stations in the whole country reached to 1647 and the national basic weather net was formed.
至1957年，全国气象台站已达1647个，初步组成了全国基础气象台站网。
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