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。
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