灌区改造,irrigation district reconstruction
1)irrigation district reconstruction灌区改造
1.With projection pursuit technique, a comprehensive evaluation model forirrigation district reconstruction is developed in this paper.建立了灌区改造综合评价的投影寻踪模型 ,利用该模型可将灌区改造综合评价的多个指标投影为一投影特征值 ,根据投影特征值的大小进行客观评价 ,整个过程无人为干扰 ,操作简便 ,便于在生产实践中应用。
2)irrigation district modification灌区改造工程
1.Brief discussion on the cost-benefit calculation of national economic evaluation inirrigation district modification;试论灌区改造工程国民经济评价中的费用和效益计算方法
英文短句/例句
1.Brief discussion on the cost-benefit calculation of national economic evaluation in irrigation district modification;试论灌区改造工程国民经济评价中的费用和效益计算方法
2.Soil and Water Conservation in Water-Saving Modification of Wenyuhe Irrigation Area;文峪河灌区节水改造工程的水土保持
3.Saving Water Transformation and Benefit Analysis of Countryside Irrigation Engineering in Huihe River Irrigation Area浍河灌区农村灌溉工程节水改造与效益分析
4.Probe into Qualification of Construction Enterprises in Water Conservation & Transformation Engineering in Fenhe River Irrigated Area;汾河灌区节水改造工程中施工企业资质的探讨
5.Analysis on the Problem of Estimated Unit-price of LaborCost in Water-economizing Project;灌区节水改造工程中人工预算单价问题浅析
6.Benefit analysis on rebuilding and water-saving project of Nanwan irrigated area;南湾灌区续建配套与节水改造工程效益分析
7.Engineering benefit analyses on the construction of attach ment set and saving water transformation in Pishihang Irrigation Area;淠史杭灌区续建配套和节水改造工程效益分析
8.Analysis on the Quality Influencing Factors of Water-saving Transformation in Irrigation Areas灌区节水改造工程影响质量控制因素的分析
9.Application and Comparison of the Channel Anti-seepage Methods in the Watersaving Transformation of Irrigation Areas灌区节水改造工程中几种渠道防渗方式的应用
10.On Benefit Analysis of Fenhe Irrigation District’s Water-saving Transformation Project and Countermeasure Study汾河灌区节水改造工程效益分析与对策探讨
11.Practice and Effect of the Water Saving Reconstructing Engineering in the Large-scale Irrigation District大型农业灌区节水改造工程实践与效果分析
12.The Construction and Analysis of Results about Paman Reservoir-ditch and Caohu Irrigation Area Diversion Canal Water-saving Renovation Project;帕满水库放水渠及草湖灌区引水渠节水改造工程建设与成效分析
13.Engineering measures and their effects on transformation of shrubs in Horqin Sandy Land科尔沁沙地灌丛改造的工程措施及效果
14.Arc - bed trapezoidal canal cross section applied in reconstruction Jiamakou irrigation district;弧底梯形断面在夹马口灌区续改工程中的应用
15.On the Transform of Industrial Landscape of Old District: A New Task during Renovation of Tiexi Industrial District, Shenyang;老工业区改造过程中工业景观的更新与改造——沈阳铁西工业区改造新课题
16.Grouting test at the rock plug intake and solutions for main problems in reconstruction of Changdian hydropower station长甸电站改造工程岩塞进水口现场灌浆试验和主要问题及处理
17.Structural Design of Qingdao Buildings青岛李沧区改造项目C区工程的结构设计
18.CONSTRUCTION OF UNDERWATER EXPLOSION OF WHARF WORK IN EAST AREA OF MIDDLE HARBOUR OF QINGDAO青岛市中港东区码头改造工程水下爆岩施工
相关短句/例句
irrigation district modification灌区改造工程
1.Brief discussion on the cost-benefit calculation of national economic evaluation inirrigation district modification;试论灌区改造工程国民经济评价中的费用和效益计算方法
3)irrigation district"s water saving and improvement灌区节水改造
1.Study on determination of comprehensive evaluation index weight inirrigation district"s water saving and improvement灌区节水改造综合评估指标权重确定方法研究
4)large-scale water-saving improvement大型灌区节水改造
1.At present, some projects have been completed, the study work of later-evaluation onlarge-scale water-saving improvement project appears in order to find out whether these projects achieved the anticipated goal, and they could also provide useful reference for the similar projects in the futu.目前，已有部分项目陆续完工，为了弄清项目的实施是否达到了预期的目标，并能为今后类似项目的实施提供有益的参考，对这些已完工的大型灌区节水改造项目后评估研究工作也随之孕育而生。
5)water-saving transformation in irrigation areas灌区节水改造工程
1.The quality control ofwater-saving transformation in irrigation areas is the key project and core of the construction.灌区节水改造工程的质量控制问题是工程的关键和核心。
6)irrigation reform灌区改革
延伸阅读
都江堰灌区都江堰灌区Dujiangyan Irrigation District士王庙冰文站都江堰渠首示意图的含意。而且由于这里的环流作用和外江坡降大，大部分泥沙都从外江排走。渠首工程布局合理的第二点是，飞沙堰的位置正好布置在内江弯道的末端，强烈的螺旋流把进入内江的泥沙绝大部分排出飞沙堰，同时也溢出了大部分洪水，从而保证了宝瓶口少进洪水和泥沙。其三是宝瓶口利用玉垒山脚下有利地形，经人工修凿成形如瓶颈的引水口，其口门宽仅20米，既能引水、灌溉、漂木，又能控制少进洪水，减轻内江灌区洪涝威胁。成功的经验在都江堰的创建与发展过程中，总结出:“乘势利导、因时制宜”和“遇弯截角，逢正抽心”的治河原则;“砌鱼嘴、立拜缺(溢洪道)、深淘滩、低作堰”等引水、排沙、防洪经验;创造了妈搓、竹笼、“羊圈”、桩工、干砌卵石等河工技术。这些经验和技术的特点是:适合当地条件，符合现代科学原理，就地取材、施工简易、经费节省。至今仍有实用价值。都江堰修建在眠江这样一条推移质数量多、粒径大的河流上，而且是个无坝引水枢纽，河道的整治，水量的合理调配，工程的维护，都有赖于良好的管理工作。从1974年在外江挖出的李冰面象身上所刻铭记可知，东汉灵帝时，派有“都水椽”和“都水长”的水利官员，说明至迟在1800多年前都江堰就有管理机构了。以后历代都设堰官，负责岁修工作，这是都江堰历久不废的一个重要原因。现代的都江堰灌区1949年以后，对都江堰的改造与发展做了大量工作;改建了渠首工程，加固鱼嘴、飞沙堰、离堆和宝瓶口;调整和合并了外江几条干渠的引水口;修建了50余座重要分水枢纽;改造了老灌区三万多条旧渠道。灌区的发展在成都平原，新建了人民渠1一5期灌区，三合堰灌区，东风渠1一4期灌区，牧马山灌区，扩大了解放渠灌区和老灌区，共计发展了由都江堰直接引水的平原灌区390 .20万亩。在龙泉山以东丘陵地区，新建了人民渠6一7期灌区，东风渠5一6期灌区共计发展了引都江堰水囤蓄的丘陵灌区429 .01万亩，合计新发展灌区819、21万亩，使都江堰灌区从1949年的288.39万亩发展到1107.6万亩‘详见表)。并在新灌区相应建造了黑龙滩、三岔、鲁班、继光等10座大中型水库、300余座小型水库，总库容12亿立方米。灌区的管理工作为了加强组织领导，统一管理机构，成立了都江堰管理局。
