【摘 要】
：
本文根据多年实测水文资料、用数理统计法对呼兰河流域各站的水文要素进行了分析，从中探讨流域内各站的水文要素变化规律、特性．
Based on the measured hydrological data ov
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本文根据多年实测水文资料、用数理统计法对呼兰河流域各站的水文要素进行了分析，从中探讨流域内各站的水文要素变化规律、特性．
Based on the measured hydrological data over many years, this paper analyzes the hydrological elements of each station in Hulanhe River Basin by mathematical statistics, and discusses the variation regularities and characteristics of hydrological elements of each station in the basin.
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