灌水堰 的英文怎麼說
中文拼音 [guànshuǐyàn]
灌水堰
英文
irrigate ring weir-
The system skillfully takes advantage of the naturltopography and the eurved waterflowing pattern om the middle reach of the mingjiang river, thus combining water - bifurcation, flood - diversion, sand - dredging and water - controlling as a whole gravity irrigation system, which guarantees the chengdu plain a land of abundance
都江堰巧妙利用岷江出山口處的地形、水脈、水勢、乘勢利導，使堤防、分水、泄洪、排沙、控流相互依存，共為體系，保證了防洪、灌溉、水運和用水綜合效益的發揮，孕育了舉世聞名的「天府之國」 。Levee : an embankment for preventing flooding ; a continuous dike or ridge ( as of earth ) for confining the irrigation areas of land to be flooded
堤防:用來防止淹水的堤壩;一個連續的圍堰或土坎（地表）為阻止灌溉區被洪水泛濫。Through the water quality analysis on the cod tp, tn in the irrigation water and drainage water in a model experimental field, the regulation and its influence on environmental water pollution by the drainage water was also studied
通過對蕭山聞堰鎮某二季晚稻試驗田灌溉用水和農田排水的逐次記錄和取樣分析，研究了農田退水中cod 、 tp 、 tn的排放量和排放濃度變化，以及農田退水對本地水環境的影響。The paper introduces large - scale fem software, algor, by which the auther can build model of hanging box of high pile cap, and simulates accurately three loadcases, which include loadcase behind enclosed concrete, loadcase behind empty water in hanging box, and loadcase behind high pile cap construction. the auther calculates tensor and displacement of hanging box weir when loads exert panels, supports, suspenders, top beams, base beams of hanging box weir. at the same time the auther carrys out th e stability analysis, besides, educes calculational and analytical data, which are tally with construction result in the main
論文介紹大型通用有限元計算軟體algor ，並用軟體建立大遼河特大橋高樁承臺吊箱圍堰的全結構模型，相對準確地模擬灌注封底混凝土后、抽除吊箱內河水后、承臺破冰體施工后等三種受力工況，並用模型進行了應力和變形的計算，計算各工況荷載作用於吊箱全結構箱體板面、內支撐、吊桿、懸吊頂梁、底梁等的應力和變形，並對比吊箱圍堰板面計算變形和施工實測變形，結果是吻合的；對大遼河特大橋高樁承臺輕型吊箱的穩定性進行了計算分析；論文研究工作表明，應用組合有限元方法計算大型施工結構問題具有現實意義。With hydrodynamic screws, even minimum hydrodynamic potentials at powers from 1 kw can be made use of economically. with hydrodynamic screws, fine screening installations for protecting against floating objects and fishes, needed for turbines, are not necessary
該技術可以用於取代小型需要經常修復的渦輪機，取代有缺陷的水輪機，用於污水處理廠的出水口，安裝在已有的水渠堰壩上，或安裝在灌溉渠中。Hydraulic structures, velometers, weirs, and flumes are used to gauge water in many irrigation districts. the fundamental principles and suitable conditions of these water metering methods are introduced in this paper. the main problems in the development of water metering instruments and facilities as well as main causes of difficulty in popularization of the methods in irrigation districts are analysed. it is suggested that selection and construction of water metering facilities should be combined with canal lining in irrigation districts. it is also pointed out that for realization of automation of water metering it is necessary to develop and popularize portable and stationary water metering instruments step by step based on economic development levels in irrigation districts
介紹利用水工建築物、流速儀、堰、槽進行量水的基本原理及各自適用條件.從量水儀器、設施的性能、價格及灌區經濟發展水平等方面，分析目前在灌區量水儀器、設施的開發研製方面存在的主要問題，以及灌區量水難以普及的主要原因.提出應結合灌區渠道防滲工程建設，合理選擇和建設量水設施，並根據灌區經濟發展水平，分步驟研製和推廣便攜式或固定式量水儀器，最終實現灌區量水自動化的灌區量水實施方案分享友人