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    Tuesday, November 16, 2021

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    HKO's observing station: world's first accredited centennial upper air observing station (3)

    (Ecns.cn) 13:55, November 16, 2021

    This photo shows the Hong Kong Observatory. (Photo: China News Service/Li Zhihua)


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    (Web editor: Zhong Wenxing, Liang Jun)

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