• Under base employ of the coated urea, the total N concentration of farm surface water was near the contract level, and the possibility via runoff was very little.

    结果表明,包膜尿素施情况下,浓度始终接近对照水平通过径流损失可能性很小

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  • On the base of having surveyed a lot of karst basins, collected the hydrologic date and analysed the physical process of runoff generating , a hydrologic model was presented in this paper.

    大量岩溶流域查勘水文资料收集基础上,分析了岩溶流域径流形成物理过程,提出了相应的水文模型

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  • The target porosity and thickness of pavement of the permeable asphalt mixture on the basis of the factors such as reducing the runoff, the filter ability of soil base and pavement overflow.

    基于减小地表径流、渗透能力铺装溢流量方面因素设计透水性沥青混合料目标孔隙率及铺装厚度

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  • Base on investigation of soil and water loss in Baipenzhu reservoir catchment area, experimental research on rainfall-runoff-sediment yield of typical erosion landform and vegetation was carried out.

    对白盆珠水库库区开展水土流失实地调查基础,选择库区典型侵蚀地貌类型植被类型进行降雨—径流—沙规律的初步研究

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  • The region of upper Lanzhou is main runoff-producing area in Yellow river basin, and the base-flow plays an important role in the runoff.

    黄河兰州以上黄河流域主要来水区,其中基流来水量中占有相当大的比重。

    youdao

  • The region of upper Lanzhou is main runoff-producing area in Yellow river basin, and the base-flow plays an important role in the runoff.

    黄河兰州以上黄河流域主要来水区,其中基流来水量中占有相当大的比重。

    youdao

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