Meteorologists use satellites, land observatories and historical data to provide information about the weather.
氣象學(xué)家使用衛(wèi)星 、 上天文臺和歷史資料來提供有關(guān)天氣的信息.
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Since they were excellent astronomers, some think that they also used their pyramid structures as observatories.
由于瑪雅人是出色的天文學(xué)家, 有人認為他們還將這些金字塔建筑用作天文觀象臺.
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There were 256 meteorological observatories with radar installations and 356 satellite cloud map receiving stations.
全國共有氣象雷達觀測站點256個,衛(wèi)星云圖接收站點356個.
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