輸水支管 的英文怎麼說
中文拼音 [shūshuǐzhīguǎn]
輸水支管
英文
delivery pipe branch- 輸 : Ⅰ動詞1 (運輸; 運送) transport; convey 2 [書面語] (捐獻) contribute money; donate 3 (失敗) l...
- 水 : 名詞1 (由兩個氫原子和一個氧原子結合而成的液體) water 2 (河流) river 3 (指江、河、湖、海、洋...
- 支 : Ⅰ名詞1 (分支; 支派) branch; offshoot 2 (地支) the twelve earthly branches3 (姓氏) a surname...
- 管 : Ⅰ名詞1 (管子) pipe; tube 2 (吹奏的樂器) wind musical instrument 3 (形狀似管的電器件) valve;...
-
Fieldbus is a kind of communication network which is a whole digitial communication multi _ embranchment data bus between intelligential field device and auto _ system. control system based on pcs ( fieldbus control system ) is a new kind of system which connect field control unit, field monitor unit, operation unit, communication interface uint with databus. lt integrates computer technology, communication technology and process cnotrol technology to adjust to demand of high standard productive control and enterprise management. lt developments and follows the advantage of traditional instrument control system and computer central control system and make up for their disadvantage so that it is applied in different industrial cnotrol area
現場總線是連接智能現場設備和自動化系統的數字式、雙向傳輸、多分支的通信網路。它是一種能支持雙向、多節點、總線式的全數字通信網路。基於現場總線技術的控制系統是一種新型的控制系統,它採用總線方式將現場控制單元、現場監視單元、操作站、通信介面單元連接起來,綜合了計算機技術、通信技術和過程式控制制技術,以適應現代高水平生產控制與企業管理的需要。The article, divided into 3 periods, describes the history of the development of zhujiang river ' s waterway transportation, and gives us a true picture of zhujiang river ' s waterway transportation in the following aspects : societal economy of zhujiang river valley, present conditions of fairway, harbors, ships and supporting & guarding systems such as waterway transportation industry, communication, piloting, and etc. the main contents include the characteristics of zhujiang river ' s layout, the fulfillments of zhujiang river ' s waterway transportation and the quantities of passengers and cargoes that zhujiang river carried, laying emphasis on the conveyance method and characteristics of zhujiang river as a main and important waterway transportation channel, and introducing characteristics of the fairway layout of the zhujiang river, present conditions of fairway grading structure, layout characteristics of the harbors in zhujiang river valley, harbor ' s handling capacity & container harbor ' s present situation, and gross tonnage & layout characteristics of shipping capacity of zhujiang river valley, ships " technical conditions and transportation methods
論文分三個階段論述了珠江航運發展的歷史沿革。從珠江流域社會經濟、航道、港口、船舶,以及水運工業、通訊導航等支持保障系統等方面論述了珠江航運的發展現狀,分析了珠江水系河流分佈特點,珠江航運生產,客貨運輸量,並重點論述珠江水系水運主通道和重要河道的運輸方式和運輸特點;珠江航道分佈特點、航道等級結構現狀;珠江水系港口分佈特點、港口吞吐量及集裝箱港口現狀;珠江水系船舶運力的總量、結構及分佈特點,船舶的技術狀況、運輸方式等。論文分析了珠江航運發展存在問題及制約因素,珠江航運發展存在的主要問題,一是內河航運建設資金投入不足;二是水資源未得到綜合利用;三是航運管理體制不順;四是技術裝備落後,限制了內河航運優勢的整體發揮。Abstract : a brief introduction to scientific research in the three gorges project ( tgp ) and the applications of research achievements is given, which include treatment of newly slited layer on the foundation of the first stage earth - rock cofferdam, dumping bottom technique of river closure in deep water, construction of cut - off walls in the second stage earth - rock cofferdams, 3 - d computer simulation of river closure, concrete casting alternatives and selection of major construction equipment for the second stage construction optimization of durability of raw materials of concrete, deep sliding resistance and stability of the intake dam section, the section of the intake of the power station, the intake penstock of the power station, layout and hydraulics problems of shiplocks, stability of high slopes of shiplocks, and optimization of the system structural anchor bars to reduce the risk of cracking in the concrete wall and 700mw turbine generator units
文摘:介紹三峽工程的科研項目,綜述三峽工程開工以來的主要科研成果及工程應用情況,包括:一期土石圍堰基礎處理與施工技術;大江截流上下游土石圍堰平拋墊底研究;二期圍堰防滲工程研究;大江截流計算機科學管理;大壩混凝土澆築方案及主要施工機械選型;混凝土的原材料和耐久性優化試驗研究;大壩基礎深層抗滑穩定研究;三峽電站進水口型式研究;鋼襯鋼筋混凝土引水管道研究;蝸殼打壓、廠壩間伸縮節問題研究;永久船閘的引航道布置、輸水系統及水力學、高邊坡穩定、混凝土襯砌墻的結構與支護研究;特大型水輪發電機組的科學研究。A brief introduction to scientific research in the three gorges project ( tgp ) and the applications of research achievements is given, which include treatment of newly slited layer on the foundation of the first stage earth - rock cofferdam, dumping bottom technique of river closure in deep water, construction of cut - off walls in the second stage earth - rock cofferdams, 3 - d computer simulation of river closure, concrete casting alternatives and selection of major construction equipment for the second stage construction optimization of durability of raw materials of concrete, deep sliding resistance and stability of the intake dam section, the section of the intake of the power station, the intake penstock of the power station, layout and hydraulics problems of shiplocks, stability of high slopes of shiplocks, and optimization of the system structural anchor bars to reduce the risk of cracking in the concrete wall and 700mw turbine generator units
介紹三峽工程的科研項目,綜述三峽工程開工以來的主要科研成果及工程應用情況,包括:一期土石圍堰基礎處理與施工技術;大江截流上下游土石圍堰平拋墊底研究;二期圍堰防滲工程研究;大江截流計算機科學管理;大壩混凝土澆築方案及主要施工機械選型;混凝土的原材料和耐久性優化試驗研究;大壩基礎深層抗滑穩定研究;三峽電站進水口型式研究;鋼襯鋼筋混凝土引水管道研究;蝸殼打壓、廠壩間伸縮節問題研究;永久船閘的引航道布置、輸水系統及水力學、高邊坡穩定、混凝土襯砌墻的結構與支護研究;特大型水輪發電機組的科學研究。With the assumption of insignificant vibration and the results obtained in the sixth chapter, the linear solution for the motion equation of forced vibrating pipe with fixed supports in two ends in steady vibration is derived
首先,在微小橫振動假設前提下,利用第六章的計算結果,用線性化方法推得了兩端固支水下輸液管道在穩態繞流條件下的強迫振動方程的解。We succeeded in crossing hanjing river of zhong - wu gas pipeline project, dawen river of jining branch line of west - east gas pipeline using the technique of trenching in water, controlling negative buoyancy and bottom towing without water interception
公司採用帶水大開挖成溝,控制負浮力,管道底拖法等施工工藝,在江河不斷流的前提下,成功完成了忠武輸氣管道襄樊支線漢江穿越、西氣東輸冀寧支線大汶河穿越等工程。Aimed at the current problem of pipeline layout optimization technique, the research of irrigation pipeline layout and pipe diameter optimization has been done, the gis ( geography information system ) and graph theory were first put forwarded to applyed to the design of low pressure pipeline irrigation project in the paper. with the support of gis, the minimal spanning tree theory of graph theory and 120 project theory can be applied to irrigation pipeline ' s layout optimization. at the aspect of pipe diameter optimization, simplicial method and interior - point method are been used in solve liner optimization model of pipe diameter to reach minimum project cost or a nnual working cost of low pressure pipeline irrigation
本文主要針對當前南方地區低壓管道輸水灌溉規劃設計中存在的技術難點,開發研究先進實用的樹狀低壓輸水灌溉管網計算機輔助設計系統。首次提出了將gis (地理信息系統)和圖論技術應用於低壓管道輸水灌溉規劃設計及灌溉管網優化中,在gis支持環境下,應用圖論中的最小生成樹法和120規劃進行管道的最優化布置。建立以管道輸水灌溉系統的年折算費用最小為目標函數的管徑優化線性規劃模型,並將內點法應用於線性優化模型的求解。Vascular tissue transports water and nutrients through the plant and also provides strength and support
維管組織不僅可以在植物體內運輸水分和營養物質而且為植物體提供支撐力,具有支持作用。At first the thesis introduces how the gis used in transportation, and analyzing its application in domestic and international. then introduces the basic collaboration theory, selection of collaboration partner, the selection of collaboration business, some arithmetic about vehicle scheduling and how to scheduling. at the end, it use the gis based on component object, integrates the model of vehicle scheduling, builts the information management of vehicle scheduling for companies
論文首先簡介了gis技術,分析了國內外gis在交通運輸中的運用情況,接著闡述了協同的基本理論,對合作企業的選擇、協同運輸業務的確定進行了研究,描述分析了車輛調度的一些演算法;最後運用基於組件的gis技術,結合車輛調度的數學模型,開發出企業協同網路調度的信息管理系統,實現相關協作運輸調度的智能安排和圖形化顯示,並對企業經營數據進行統計、分析,為運輸企業之間的信息共享、交流合作提供了一個支持平臺,進而為提高公路運輸企業的經營管理水平和市場競爭力提供了新的手段。Research on current rush to interception air - mass in delivery pipeline system and water hammer with gas is a branch of concurrent gas - liquid flow. for it refers to many fields, such as fluid mechanics, transient flow, concurrent gas - liquid flow and thermodynamics, the problem is very complicate, and there are still some issues to be deeply studied actually
輸水管道系統水流沖擊截留氣團與含氣水錘研究屬于氣液兩相流的一個分支,該問題涉及到瞬變流、空化、氣液兩相流和熱力學等多領域的理論,因而該問題十分復雜,有必要進行深入研究。Result of study indicates that the momentum input along with the branch flow toward the downstream and the additional friction induced by the mixing of main streams with branch flows should be considered for rational analysis of the local energy loss at junctions
研究結果表明,正確分析管道匯流口水流的局部能量損失機理,必須考慮匯入斷面上支流沿下游主流方向的動量輸入和主支流間相互摻混引起的附加摩擦阻力的影響。Payment and management of contract cost in water conveyance project of dahuofang reservoir
大夥房水庫輸水工程合同價款的支付與管理The mechanisms of flow - induced vibrations of the fluid - conveying pipes on offshore platform and in water are analyzed, the physical models and mathematical models of flows in pipes on offshore platform and in water are established, with the programs of numerical simulation, the flow of vibrating pipe, the force of flow - induced vibration in pipe on offshore platform and the lift and the drag of flow acting on the fluid - conveying pipe in water are solved, and the linear solution for equation of vibrating fluid - conveying pipe in water with the fixed supports in two ends is derived
分析了海洋平臺及水下輸液管道的流體激振機理,建立了相應條件下的物理模型及數學模型,應用matlab軟體編制了計算程序,對海洋平臺輸液管道內流流場、管道所受流體激振力及水下輸液管道繞流受力(橫向升力及縱向阻力)分別進行了求解,並推得了兩端固支條件下水下輸液管道強迫振動方程的線性解。分享友人