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water and soil conservation project
相关语句
  水土保持生态建设工程
     This paper according to 《The Making stipulation of budgetary estimate(estimate cost) of water and soil conservation project》 (The ministry of water conservation issue on 2003.1.25) exploits the making methodology of cost for water and soil conservation ecological construction project based on Excel.
     作者依据《水土保持工程概(估)算编制规定》(水利部2003-01-25颁布),利用Excel软件开发了编制水土保持生态建设工程造价的方法.
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  “water and soil conservation project”译为未确定词的双语例句
     Research on Supervision of Water and Soil Conservation Project in Construction Phase of Freeway
     高速公路施工期水土保持工程监理研究
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     The Water and Soil Conservation Project of Dongyang Highway
     东阳至仙居公路东阳段水土保持方案设计
短句来源
     Study on Several Problems of Compiling Water and Soil Conservation Project about Development and Construction
     水土保持开发建设项目方案编制中常见问题分析
短句来源
     The discussion of Inspection of water and soil conservation project of key water control project in MoPanShan Harbin
     哈尔滨市磨盘山水利枢纽工程水土保持监测探讨
     In the base of calculation and forecast, the primary planning to preventing the water and soil loss of dahongshan iron ore is gained which mark out the trend of ground using and measures and approach of land reclamation and vegetation rehabilitation of mining field ,which gives some reference and advice for making water and soil conservation project and preventing and curing water and soil loss.
     鲜「赐?人工堆积边坡>>原地貌各侵蚀类型的规律。矿区的土地复垦和生态重建,可以大大减小矿区的土壤侵蚀。在土壤侵蚀估算和预测基础上对矿区水土保持进行初步规划,通过对矿区土地利用、土地复垦和植被恢复的措施和步骤的规划,为矿山水土流失的防治和水土保持方案的编制提供参考和建议。
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  相似匹配句对
     in water of P.R.
     R.
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     in water.
     对于水,它约为4 ×10~3大气压.
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     and water;
     水分:31。
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     Water and Culture
     水与文化
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     Water Conservation and “I”
     节水从“我”开始——苏州市区“创建”掠影
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Huangpuchuan River is a tributary with heavy and coarse sediment content in the middle Yellow River basin. In the 1950s, the precipitation, runoff and sediment yield in the Huangpuchuan basin were comparatively adundant, while in the 1980s, the values were comparatively low. In the 1970s, heavy rain took place frequently, the precipitation and rainfall intensities were great. Estimated with amount of soil conservation works, the average annual sediment load reduced by water and soil conservation...

Huangpuchuan River is a tributary with heavy and coarse sediment content in the middle Yellow River basin. In the 1950s, the precipitation, runoff and sediment yield in the Huangpuchuan basin were comparatively adundant, while in the 1980s, the values were comparatively low. In the 1970s, heavy rain took place frequently, the precipitation and rainfall intensities were great. Estimated with amount of soil conservation works, the average annual sediment load reduced by water and soil conservation projects reached 4447 thousand tons, occupying 7.9 percent of average annual sediment yield within many years, while estimated with relationship between rainfall and sediment yield , the annual reduction of sediment load was 2760-3320 thousand tons, occupying about 5 percent correspondingly. From the above results, the projects had the effect on reducing sediment output. For further reduction of the sediment load entering the Yellow River, construction of projects and the comprehensive management should be strengthened continuously from

皇甫川流域,50年代降雨量、径流量和产沙量偏丰,80年代偏枯,70年代暴雨次数多、雨量大、雨强高。采用“水保法”计算,水利水保工程平均每年减沙444.7万t,占多年于均产沙量的7.9%;采用“降雨-产沙公式法”计算,平均每年减沙276~332万t,约占多年平均产沙量的5%。水利水保工程起到了减沙作用。为进一步减少入黄泥沙,今后仍需继续加强流域综合治理工作。

n July and August 1994, heavy storms occurred in the Wuding River basin. On August 4th and sib, the main storm covered Zhizhou and Snide areas. The storm center was located in Snide area. A rainfall value of 144. Zmm was measured within 6 hours. On August sib, the observed flow discharge was 3200m'/s at Baijiachuan station, Wuding River. This discharge ranked number 3 among all the recorded values in history' Statistics.showed that a total amount of 258 million cubic meters waters was produced by the three floods...

n July and August 1994, heavy storms occurred in the Wuding River basin. On August 4th and sib, the main storm covered Zhizhou and Snide areas. The storm center was located in Snide area. A rainfall value of 144. Zmm was measured within 6 hours. On August sib, the observed flow discharge was 3200m'/s at Baijiachuan station, Wuding River. This discharge ranked number 3 among all the recorded values in history' Statistics.showed that a total amount of 258 million cubic meters waters was produced by the three floods occurred in July and August. and 147 million tons sediment were transported. sediments transported in these three noods were over 100 mollion tons more than the average value in flood season during the 80s. There were various reasons for the increases of water and sediment yields. Besides the heavy storm, census on the areas of improvement had significant errors. Large amount of runoff and sediment were produced duringheavy storm in areas which have applied slope improvement measures. In addition, poor maintenance ic water and soil conservation projects jeopardized the dams and resulted in serious water damage. Increase of soil loss caused by human activity was another. key factor.

1994年7、8月,无定河流域连降大到暴雨,8月4~5日,主雨区在流域内的子洲、绥德一线,暴雨中心在绥德,6小时降雨量144.2mm。8月5日无定河白家川站洪峰流量达3200m ̄3/s,为该站有实测资料以来的第三位洪水,统计该站1994年8月三次洪水沙量可知,三次洪水总量为2.58亿m ̄3,输沙量为1.47亿t,较80年代汛期平均输沙量增加1亿t以上,可见流域产沙量之大。造成产流产沙增加的原因是多方面的,除暴雨较大外,治理面积统计误差较大,治坡措施在大暴雨时仍产生大量洪水泥沙;水利水保工程年久失修,病险坝库多,水毁严重;人类活动新增水土流失等也是重要原因。

There is urgent lack of water resource and serious water and soil loss in the upper and middle YellowRiver. Water conservancy and soil conservation have been carring out in large scale in the region toreasonably develop and apply the water resource and control soil and water loss. Presently, the Yellow Riverhas become a river of high man-controlled level, and because the hydrologic and sedimental features areinfluenced by hydraulic and water and soil...

There is urgent lack of water resource and serious water and soil loss in the upper and middle YellowRiver. Water conservancy and soil conservation have been carring out in large scale in the region toreasonably develop and apply the water resource and control soil and water loss. Presently, the Yellow Riverhas become a river of high man-controlled level, and because the hydrologic and sedimental features areinfluenced by hydraulic and water and soil conservation projects, the observation data from many stationare not natural. Thus, it is necessary to know the water and sediment properties in the condition ofwithout water conservancy and soil conservation projects in evaluating the water and sediment reduction effectsof the projects. Taking Yanhe river as an example, the reducing method for calculating the original waterand sediment yield under human activity influence is studied in the paper. After analysis andcomparison, the method of multi-factor stepwise regression of multi-stations is of high precision for runoffcalculation, and the sediment discharge is better calculated through runoff and sediment content.

黄河上中游水土流失严重,水资源紧缺,人们为了合理开发利用水利资源,控制水土流失,进行了大规模的水利水土保持工作。今天的黄河已成为人工控制程度很高的河流,水文、泥沙特征受到水利水土保持工程的影响,许多水文站观测的资料并非天然状况。在评估水利水保工程减水减沙作用时,需要了解无水利水保工程条件下的水沙情况。本文即以延河流域为例,探讨了在人类活动影响下还原天然水沙量的计算方法。经过分析比较认为,用多站多因子逐步回归方法计算径流量精度较高;通过径流量及其含沙量计算输沙量方法较优。

 
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