observatories

Since they were excellent astronomers, some think that they also used their pyramid structures as observatories.

由于玛雅人是出色的天文学家, 有人认为他们还将这些金字塔建筑用作天文观象台.

——期刊摘选

There were 256 meteorological observatories with radar installations and 356 satellite cloud map receiving stations.

全国共有气象雷达观测站点256个,卫星云图接收站点356个.

期刊摘选

Meteorologists use satellites, land observatories and historical data to provide information about the weather.

气象学家使用卫星 、 上天文台和历史资料来提供有关天气的信息.

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