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河川水文
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河川水文
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工程水文
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river hydrology
河川水文
运用陆地水文学的基本理论,研究河流和流域的水文要素变化规律,作为工程勘察的基础资料。地表水在重力作用下,沿陆地表面上的线形凹地流动的水流,依其大小和性质,可分为江、河、溪、沟等统称为河流,它是水循环的主要途径,和人类的关系最为密切。
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opera stele inscriptions
opera stone sculpture collected at Sun Yat-sen University
opera students
opera suit of a jacket with lining and trousers
opera symbolism
opera teachers
opera technical director
operate to the left
operate to the right
Opera Theaters of Bukit Mertajam, Penang
operatic actor’s waist tag granted by Shengping Bureau of Qing Dynasty
operatic brick engravings at City God Temple of Chengguan Town, Shengzhou City
operatic carvings at Jiuxiang Chastity and Filial Piety Stone Archway
operatic ceremonial weaponry of the Qing Dynasty in Lingbao City
operatic composition
operatic copperplate etchings of the Qing Dynasty
operatic costumes collected at the Qing court
operatic dress
operatic engravings at Mirror-Hanging Tower of Sheqi Shanxi-Shaanxi Guild Hall
operatic facial painting frescoes at Jishui Lord Yu Temple
operatic facial paintings of China's ethnic minorities
operatic film
operatic frescoes of Hongshan Temple of Xinmi City
operatic frescoes of Nianbadu Town, Jiangshan City
operatic headdress
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更新时间:2026/6/20 22:56:25