函渠 的英文怎麼說
中文拼音 [hánqú]
函渠
英文
box culvert-
The original flow rate formula of parobolic throat flume used for u - shaped channel is implicit function and is not convenient for calculation in irrigation districts. an simplified formula is developed in this paper, with a di fference between results calculated with the original formula and the new formul a being less than 0. 5 %
用於u形渠道量水的拋物線形喉口式量水槽原流量公式為隱函數形式，針對其使用不便的現狀，通過理論分析推導出了顯函數形式的量水槽流量公式，計算結果與原流量公式比較相對誤差值0 . 5 % 。Through the flume experimental research, the velocity distribution formulas for rectangular open channel have been found, including parabola form of velocity distribution on the vertical and power form of mean velocity distribution on the transverse direction ; meanwhile, the means of ascertaining correlative coefficient have been given in this paper
摘要通過對明渠流速的水槽試驗研究，建立了矩形斷面明渠沿垂線流速的拋物線分佈公式和橫向平均流速的乘冪函數分佈公式，同時給出了相關系數的確定方法。With the using of microsoft visual basic 6. 0, a multimedia computer - aided design system of small type pumping irrigation district is developed in this paper. provided with the live multimedia messages as well as a good man - machine conversation mechanism, this system can help the user to finish the planning of an pumping irrigated area such as the layout of canal system, the selection of pump models, the establishment of the irrigation program, the calculating of canals " parameters, the estimate of the project magnitude, the selection of the field constructions, the economic analysis of the project, the output of results, etc, a new oo ( object oriented ) programming method is adopted in this system, various softwares are integrated in this systems as well by the " automation " technic provided by vb, in addition, the multimedia technic is applied to this system for the first time, it makes the system easy to ope rate. as for the optimization of the canals " section, a new optimization method is adopted based on the existing theories about the canals " section, and in this way, with the purpose of minimizing the project ' s investment as well as a stalized canal, limited by the longituding slope, the canals " best feasible parameters can be deduced. furthermore, a integral method to reckon the earth work is developed in this paper, by this way, the estimate precision of the earthwork is enhanced notably. this paper includes the particular illumination for the developing procedure of each systems " segment, and in the end, the directions of the system are demonstrated in a sample area which lies in the zhaija village, taizhou city, jiangsu province, the running results showed that the initial purposes are achieved effectively, and it has a preferable practicability
在渠道縱橫斷面優化方面，本文在利用已經比較成熟的縱橫斷面優化理論的基礎上，提出以工程總費用最小為目標函數，以渠道縱坡i為控制變量，以渠道不沖不淤流速及灌區允許地面比降為約束條件，通過縱橫斷面聯動優化的方法得到渠道的最佳工程可行的斷面參數。另外，針對部分地區的取土困難的狀況，本文採用積分法計算渠道工程土方量，從而大大提高了土方量的估算精度，有助於準確控制工程投資規模及資金投向。本文詳細闡述了該系統所採用的編程方法、系統構成、系統各組成模塊的開發過程以及灌區規劃所採用的優化方法及原理，最後應用本系統對泰州市翟家村機電灌區進行規劃設計，運行結果證明其操作比較簡便，界面友好，運行速度快，規劃成果合理，基本達到了系統預定的要求，具備較強的實用性。The thrust is to investigate both theoretically and empirically the role of financial structure in the process of monetary transmission. setting out this kind of objective raises immediately the question of balance. the first two chapters aim to provide the theoretical frontier and as well an analytical framework in a portfolio - balance general equilibrium model for the role of financial structure in the transmission process of monetary policy
總之，本論文通過系統的理論檢索和對資金流量帳戶、美聯儲frb / us和英國英格蘭銀行mm的考察，提出了一個資產組合一般均衡模型框架;在該框架內，從理論和實證兩方面研究了金融結構及其在貨幣傳導過程中的影響，特別是對貨幣政策反應函數、貨幣傳導的利率渠道和信貸渠道的影響。The dynamic programming model for water conveying and distribution system design is firstly presented in this thesis in the aspect of systematic optimization. taking the minimum earthwork or total cost as objectives, the longitudinal and transverse cross sections of two - stage and more canal system can be optimized to obtain optimal canal slops and relevant parameters, which will satisfy the restraints of water levels without erosion and sediment
在系統優化方面，本文在總結前人的基礎上首次提出了輸配水系統優化設計的動態規劃渠系協調優化模型，以土方量最小或總費用最小為目標函數，對兩級或兩級以上的渠系縱橫斷面進行優化設計，可得到滿足渠道不沖不淤、水位銜接及首末水位約束的最優縱坡及其相應的斷面參數。The optimum design mathematical models of both kind channels are developed in accordance with the theory of minimum rate of energy dissipation. the rate of energy dissipation of flow is used as the objective function, and the condition of both non - eroding and non - silting, or the condition of equilibrium of eroding and silting is the constraint
以水流能耗率作為穩定渠道設計的目標函數，分別以渠道不沖不淤平衡和沖淤平衡作為約束條件，建立起穩定渠道優化設計數學模型，求解渠道底寬、水深、比降的優化值及相應流速。Through these lines, we intimate you that they may send you considerable orders
通過這些渠道，他們會發來甚多訂單，特此函告。According as the cultivated land consolidation criterion of yanqing county, the paper planed the standard farm field layout of the flat region and slopping region, and then setted up the function of calculating the cultivated land consolidation criterion coefficient, finally calculated the cultivated land consolidation criterion coefficient for low, middling and high consolidation levels. according as the non - effective coefficient of cultivated land and three cultivated land consolidation criterion coefficient, the article estimated cultivated land consolidation pote ntial for low, middling and high consolidation levels in yanqing county
依據延慶縣耕地整理標準，規劃設計出平耕地和坡耕地標準耕作田塊平面布局圖，建立了用於計算溝路渠田坎系數標準的函數式，並計算出延慶縣平耕地、坡耕地在低、中、高三種不同整理水平下溝路渠田坎系數標準，最後測算出延慶縣三種不同整理水平下的耕地整理潛力。I would like to use this letter to give you a briefing of how events have unfolded over the past few months on the africa side so that we can open a strong line of communication between our two firms for the 5a8future
特致函向您說明一下在過去幾個月里非洲方面事務開展的情況，為我們兩家公司未來的合作建立暢通的交流渠道。Experimental result shows that the non - uniform flux of open channel is single - valued corresponding to the opening angle of the plate and water depth in front of the plate, and satisfies the dualistic function
通過試驗可知：細長板開啟角度、明渠非均勻流流量與板前水深三者單值對應，並滿足二元函數的變化關系。By this we inform you that we have today paid mr. r. s. $ 120
通過這些渠道，他們會發來甚多訂單，特此函告。分享友人