水下動力機組 的英文怎麼說

中文拼音 [shuǐxiàdònglìjīzǔ]
水下動力機組 英文
underwater power packs
  • 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...
  • 下 : 下動詞1. （用在動詞后,表示由高處到低處） 2. （用在動詞后, 表示有空間, 能容納） 3. （用在動詞后, 表示動作的完成或結果）
  • 力 : Ⅰ名1 （力量; 能力） power; strength; ability; capacity 2 [物理學] （改變物體運動狀態的作用） forc...
  • 機 : machineengine
  • 組 : Ⅰ名詞1 （由不多的人員組成的單位） group 2 （姓氏） a surname Ⅱ動詞（組織） organize; form Ⅲ量詞（...
  • 機組 : 1 [工業] （一組機器） set; assembling unit; machine set; plant unit; team; unit assembly 2 （飛機...
  1. In recent years, the water - saving and control irrigation technique of rice has diverted from plot experimental and demonstration to lare scale. and has got remarkable economic and social benefits. amed at the characteristics of this irrigation area, optimal selection for water - saving techniques of rice, deciding the amout of leaching water and irrigation modles, investigating the adaptability of the water - saving and control irrigation technique in saline land. studying the increase in production mechanism of the technique are important to extend the technique, to better and develop saline land as well as slick spots. according to the results of field experiments, optimization study was conducted on the water - saving irrigation technique of rice in saline land, the effects of different water - saving irrigation techniques on the physiological indexes and yield of rice were systematically analyzed. by using mutiplepurpose fuzzy optimization method, better. water - saving irrigation technique was selector out, that is. the control irrigation technique in rice. the mechanism of it was analyzed from the aspect of the physiological and ecological saving water of rice to provide the implemental process and technical point ; throgh the quantitive analysis and comparision on control irrigation and control class ( flood irrigation ), high production and quality mechanism of the technique was analyzed in terms of physiology indexes of rice, the variation of soil moisture, the pest resistance and the lodge resistance, the change of soil temperature in paddy fields. the yield constitutive factors, the quality of rice and so on. in saline land. control irrigation and intermittent leaching modles were adopted to validate the adaptability of the technique in irrigation of rice in saline land, to analyze rice ' s physiological - ecological indexes and the change of soil salt content under the conditions of control irrigation leaching of rice and and to provide control irrigation and combined modle of intermittent leaching to adapt to different conditions

    本文從試驗及試驗資料入手，取得以下主要成果和結論：對鹽堿地水稻節水灌溉技術進行優化研究，系統地分析了不同節水灌溉技術對水稻生理指標及產量的影響，採用了多目標模糊優化的方法，對灌水技術進行綜合評判，優選了節水灌溉技術，論證該地區宜採用水稻控制灌溉技術；闡述控灌技術通過調節和控制水稻的需水規律，降低水稻高產情況下的無效水量消耗，從水稻生理、生態節水兩方面分析了控灌技術節水機理，針對性地總結出水稻各生育期實施節水控灌技術的步驟及技術要點；通過控灌與淹灌的定量對照比較，從根系、莖蘗、冠層葉片及綠葉動態到株高，土壤水分變化，抗病蟲害、抗倒伏能力，稻田土溫變化，產量構成因素及稻米品質等諸多方面進行動態比較，分析控灌技術高產優質機理；在鹽堿稻地採用控制灌溉+間歇淋洗模式，跟蹤測試田間水鹽變化狀況，驗證控制灌溉技術在鹽堿地區水稻灌溉中應用的適應性，通過分析水稻控制灌溉淋洗條件下水稻生理生態指標，提出優化控制灌溉+間歇淋洗組合模式，為進一步在高礦化度地區試驗水稻控灌技術奠定基礎。
  2. Analyses more than two years field - test data of the underground water - source & water loop heat pump air conditioning system applied to an apartment in beijing based on the computative method of calculating the electricity consumption of public - used air conditioning driven equipment and terminal heat pump units by the authors

    摘要根據筆者提出的共用空調動力設備和末端空調水源熱泵機組耗電量的推算方法，對北京某公寓地下水源水環熱泵空調系統兩年多的實測數據進行了分析研究。
  3. This paper, in the light of the special geological environment and actual project situation of the three gorges reservoir area, puts forward a comprehensive analysis and evaluation system suitable for the stability analysis of the bank landslide of the three gorges reservoir area under the premise of thorough consideration of the water influence on the stability of the bank landslide, and obtains the following achievements in several aspects that have the practical application significance and certain scientific research value : ( 1 ) it is discovered that the water activity is the primary factor of the formation of the new landslide and the revival of the ancient landslide. on the one hand, the rising underwater level reduces the actual stress of landslide ; on the other hand, the long time soaking of the underwater reduces the mechanics intensity of the landslide and the slide belt, both of which reduce directly the landslide stability ; ( 2 ) in view of the special condition of the three gorges reservoir area, this paper analyzes systematically the forces acted on the landslide of the three gorges reservoir area and the force varieties acted on the divided landslide when the water level changes between 175 meters and 145 meters. thus it is more scientific and comprehensive for the analysis of the forces acted on the landslide ; ( 3 ) this paper summaries systematically 10 kinds of typical computation projects by organic combinations of different kinds of situations in the dry season ( nature statue ), rainy season ( rainstorm or rains for a long time condition ), with 175m water level in the reservoir, during the earthquake, with the water level of the reservoir adjusted from 175m to 145m and so on, and produces

    本文針對長江三峽庫區特殊的地質環境與工程實際情況，在充分考慮水對庫岸滑體穩定性影響的前提下，提出了一個適用於長江三峽庫岸滑坡體穩定性分析的綜合分析評價體系，並取得了如下幾個方面具有工程實際意義和一定科學研究價值的研究成果： （ 1 ）研究結果發現，水的活動是新滑坡形成或古滑坡復活的主要因素，一方面是由於地下水位升高降低了滑坡體的有效應力，另一方面是由於地下水的長期浸泡降低滑體及滑帶的力學強度，這兩方面的因素均將直接降低滑坡的穩定性； （ 2 ）針對三峽庫區的特殊條件，系統分析了作用於三峽庫區滑坡體上的力系和庫水位在175m與145m間變化時滑體條塊的受力變化，從而使對作用於滑坡體上的力系分析更科學、更全面； （ 3 ）通過對滑體處于旱季（天然狀態） 、雨季（暴雨或長期降雨狀態） 、 175m庫水位、地震以及庫水位由175m調節下降至145m等各種不同情況的有機組合，本文系統地歸納總結出了10種典型計算工況，並具體給出了相應的作用荷載的計算方法，使在庫區岸坡滑體穩定性分析評價時對計算工況選擇及其作用荷載的計算更具規范性； （ 4 ）具體運用c + + builder開發了關于滑坡體穩定性綜合分析評價系統，使對滑坡體穩定性分析計算更方便、更準確； （ 5 ）將上述滑坡體穩定性綜合分析評價系統應用於重慶市豐都縣名山滑坡穩定性分析的具體事例中，分析結果表明，本文所提出滑坡體穩定性綜合分析評價方法對三峽庫區的滑坡穩定性分析是實用可行的。
  4. What is mainly discussed in this dissertation is as follows : the fault mechanism and vibration frequency feature of hydroelectric vibration are analyzed, induced and reorganized. the select and placement of detecting positions of parameters such as vibration, swing and pressure pulsation are researched, and the corresponding sensors are selected to monitor

    本文主要進行了以下工作：分析、歸納和整理了水電機組振動的故障機理和振動頻率特徵，對機組的振動、擺度和壓力脈動測點進行了選擇和布置，並選用相應傳感器進行監測。
  5. The inner - plant economical operation of lijiaxia hydropower station is studied based on the disadvantageous operating mode area of the units determined by school of civil engineering of tianjin university and the actual operating experience of the lijiaxia hydropower station in the last a few years

    摘要以天津大學建築工程學院確定的李家峽水電站機組的不利工況區為依據，以近幾年來該水電站的實際運行經驗為參考，在綜合考慮機組初始運行狀態、機組振動特性、機組出力、下泄流量、水庫蓄水量和電網負荷平衡等因素的基礎上對李家峽水電站的廠內經濟運行進行了研究。
  6. In chapter 3, the subgrid eddy - viscosity model for large eddy simulation is applied to calculate the three dimensions unsteady periodic turbulent flow in yantan francis turbine. the pulsating characteristics of some main physical parameters in flow field are found. the calculated axial water thrust of hydraulic turbine agrees with the model - test value

    第三章採用大渦模擬亞格子渦粘模型，對巖灘混流式水輪機的流場進行三維非定常湍流分析，得到了流場中各物理量的脈動特性，計算出ms的軸向水推力與模型試驗值大小相當；同時論證了對于下機架承重的混流式水輪發電機組可採用其推力軸承負荷作為水電站廠房振動的最大垂直激振荷載。
  7. The main issues of the research are put as following : firstly, with the international comparing of market sharing rate and trading competitive index, it was revealed that wheat in china has inferior international competitiveness with a bit rising during current years, however, which is still behind that of the main wheat export countries. secondly, after the international comparing of the main factors that affect the international competitiveness of wheat, it was discovered that chinese wheat has the obvious cost advantage on unit product, while because of the high circulation fee, it results in inferior advantage on the price ; low and unstable quality is another factor which leads to inferior wheat competitiveness ; the input of fertilizer and labor makes little impact on the productivity of chinese wheat, while the input of seeds, irrigation and machine makes a strong impact, so it should be more invested in seeds, irrigation and machine to reduce wheat ' s unit cost. the assistant industries of the wheat, such as breed, production materials and processing industries, have inferior international competitiveness and lagged development

    其次，通過對影響小麥國際競爭力的主要因素的國際比較發現：中國小麥單位產品生產成本具有明顯優勢，但由於較高的流通費用，導致在價格上不具有優勢；小麥質量較差、品質不穩定是導致中國小麥國際競爭力較低的主要因素；生產要素中化肥和勞動力投入對中國小麥生產力水平的影響程度較小，而種子、灌溉和機械投入對小麥生產力水平的的影響程度較大，因此小麥生產投入要以增加種子、灌溉和機械的投入為主，代替大量的化肥和勞動力投入，進一步降低小麥單位產品成本，增強中國小麥國際競爭力；中國小麥的上下游輔助產業（包括品種資源、生產資料和加工業）的國際競爭力較弱，發展較為滯后；中國小麥生產者的組織化程度較低嚴重製約了中國小麥質量的提高、流通費用的降低和加工業的發展；小麥生產經營活動本身的特點決定了在充分發揮市場機製作用的基礎上，必須通過政府的宏觀調控來克服其市場機制的失靈，保障市場機制有效運行，但通過國際比較研究發現：中國政府在生產者支持、市場體系建設和國際貿易政策上對小麥的支持水平較低，與提高中國小麥國際競爭力的要求有較大差距，尤其是較低的生產者支持水平和市場體系建設程度制約了中國小麥國際競爭力的提高。
  8. Based on the vibration test in yantan hydropower house, in this paper the author adopt les method which belong to three dimensions unsteady turbulent flow numerical analysis to simulate vibration resource characteristics of hydrogenerator set, a harmonic vibration model of powerhouse substructure is put forward to carry out firstly a precise modal analysis and dynamic response analysis for generator floor. the numerical calculation results agree well with the surveyed data in situ

    本文結合巖灘水電站廠房振動的試驗研究，採用非定常湍流數值分析的大渦模擬方法進行混流機組水力振動振源模擬；提出一種水電站廠房下部結構簡諧振動模型，首次進行了發電機層樓板結構的精確模態分析和水力激振荷載下的動力響應分析，各項計算結果與實測數據吻合良好。
  9. In chapter 4, the model - building principle and calculating method of finite element dynamic analysis for large - sized assembled structure are discussed. the substructure model for hydropower house vibration analysis is established to obtain precise modal of generator floor. the harmonic vibration assumption is adopted to calculate house structure ' s dynamic response from hydraulic excitation force of hydraulic turbine generator unit

    第四章討論了大型組合結構有限元動力分析的建模原則和計算方法，建立水電站廠房振動分析的下部結構模型，對巖灘廠房進行整體模態分析，較準確地得出發電機層樓板自振特性；同時引進簡諧振動假定，迸行了機組水力振動作用下的廠房結構的動力響應分析。
  10. Thermal stress control system actually gather the real - time data of unit sets ， compute temperature fields ， stress fields and maximum dangerous stress by the math modal ， decide target and speedup rotation in every stage of startup process ， and justify automatically to realize auto control a serial of processes of turbine ， such as speedup ， warm - up ， connecting net ， load changing ， stop and unsteady condition etc ， and improve automatic level of the unit sets. turbine auto startup ( tas ) system can automatically evaluate steam turbine ' s startup and load changing process according to thermal stress of

    熱應力控制系統實際是對機組運行參數進行實時採集與監控，通過數學模型實時地計算高、中壓缸轉子的溫度場、應力場分佈，以及最危險熱應力，以確定啟動過程各階段的目標轉數及升速率，並進行自動調整，實現機組沖轉、升速、暖機、並網、升負荷、停機以及異常工況下的自動控制，大大提高了機組的自動化水平。
  11. In the special fields locking valves, underground mining, water hydraulic systems or beyond that with mining machines, hydraulics, selector valves as well as with aggregates, open cast pit, strip mining, surface mining and / or with hydro and hydraulically is saartech hydraulik gmbh well - known

    Saartech hydraulik gmbh是一家現代化的、可靠的專門產品供應商，這家供應商從事成套設備、機組，礦山機械，液壓系統，液壓，液壓動力源，液壓缸，醫藥技術，地下，地下開采，整流器、整流管、閥、閥門，截止閥、關閉閥，露天礦，水壓學、水壓技術、水壓系統，方向閥，換向閥，液壓的的製造、銷售。
  12. For the sake of the research about hydroelectric interfere among machines, the article utilized the simulink in matlab as simulating tool, meanwhile established the simulating model about two high head diversion water turbines regulation system in violent fluctuating pressure sharing one head race tunnel and surge tank and one penstock. then calculated the load rejection transition process by means of the real parameters of a hydro power station, analysed the interfere of hydro power station safety and stable nenring brought by hydroelectric interfere and put forward a series of measures that lightening the hydroelectric interfere

    為了研究機組間的水力干擾，本文採用matlab下的simulink作為模擬工具，建立共用有壓引水管道、調壓井、壓力主管的兩臺高水頭引水式水輪機調節系統大波動時的模擬模型，引入實際電站的參數，對甩負荷過渡過程進行了模擬計算，分析水力干擾對電站安全、穩定運行所造成的影響，並提出了一系列減輕水力干擾的措施。
  13. During past year, 28 times of measurements for two units of b plant of zhelin hydropower station were made, the states of pressure pulsation in the draft cone tube, head cover and spiral case of units were acquired under different water heads, and the influences of that on safety and stability of units operations were also acquired

    摘要在長達一年多的時間里，對柘林水電廠b廠兩臺機組進行了28臺次試驗，全面掌握了機組各水頭下尾水錐管、頂蓋和渦殼中的壓力脈動情況，以及對機組安全穩定運行的影響。
  14. The flow of every pump is inclined to be different in the same side - inlet sump and the poor flow pattern, and then the inlet condition of the pump is not good, which makes the efficiency of the pump drop and causes vibration etc. based on the theses on the hydraulic characteristic of the wenshui road pumping station in the third period shanghai disposal sewage project, the methods were discussed to improve the flow pattern of side - inlet sump, and the measures were put forward to ameliorate the flow pattern in the paper

    對側向進水集水池，一般會出現同池各水泵配水不均勻，池內流態紊亂、水泵吸水條件差，繼而導致水泵效率下降、機組振動等問題。本文結合上海市污水治理三期工程汶水路泵站水力特性研究課題，探討了改善側向進水集水池水力特性的途徑與方法，提出了有效的整流、均流措施。
  15. At same time, author suggests to change cavitation factor to important operation condition during pressure fluctuation test so to avoid producing the phenomenon of cavitation stimulus in the prototype operation

    同時，建議針對水輪機的重要運行工況，增加不同空化系數下的壓力脈動試驗，以避免在真機運行時可能產生「空化自激」現象，確保原型機組的安全運行。
  16. The paper is committed to the research on the application of fault diagnosis and fault tolerant control in the modern power plant. the new schemes of fault diagnosis both for boiler water level control system and unit coordinated control system are presented ; moreover, based on the lqg strategy, a scheme of fault tolerant control for unit coordinated control system is also proposed

    電廠熱工控制系統的安全運行已經成為人們日益重視的課題，在這種背景下，本文致力於故障診斷與容錯控制在電廠熱工控制系統中的應用研究。主要內容是針對電廠鍋爐汽包水位控制系統和電廠單元機組協調控制系統提出兩種故障診斷的新方案；並且把lqg控制策略應用於單元機組協調控制系統，提出了協調控制系統的主動容錯控制方案。
  17. Both the guide vane opening and blade opening of a hydropower generating unit can be separately regulated during disturbance according to the optimal regulation laws thus obtained to optimize the transient process of water flow

    它可以使得在擾動下水輪發電機組的導葉與漿葉的位置按照各自的優化控制規律進行調整，從而使水力過渡過程達到優化。
  18. According to the supply system composed by parallel connection water pump, many kinds of operation proposals in a single pump were put forward to provide the greatest possible flow on both sides of the demarcation point in the scope of the flux changes ; identified the system of pumps, electromotor, speed governor imitate method of characteristics curve of the power device and its rotating speed, efficiency, energy consumption calculation under different condition ; the analytical methods used for the operational plan for comprehensive evaluation of the economic and safety and optimal results

    摘要針對由並聯水泵組成的供水系統，提出了在以單泵可能提供最大流量為分界點的兩側流量變化范圍內具有多種運行方案；確定了在不同工況下，該系統中水泵、電機、調速器特性曲線的擬合方法及其各動力裝置中轉速、效率、能耗的計算式；採用解析的方法對各種運行方案進行了經濟性和安全性綜合評價，並給出最優結果。
  19. In this case, when one of the machines be placed into the transition process of the vident fluctuating pressure for some kind of reason, the other machines would be affected become of the fluctuating pressure in the diversion system and drainage system of water in upstream and downstream which use the same one surge tank and the same one penstock with the machine, so the other machines would be put into transition process of fluctuating pressure, and become a kind of hydroelectric interfere

    在高水頭引水式水電站中，通常幾臺機組共用同一調壓井，且共用壓力主管。在這種情況下，當其中一臺機組由於某種原因處于大波動過渡過程，則其在電站上下游引、尾水系統中引起的壓力變化必然會影響與其共用調壓井和壓力主管的其它機組，使其它機組也處于過渡過程，形成一種水力干擾。
  20. In the thesis, i choose the horizontal and symbiotic industrial cluster basing on the natural resources as the objects to study, and make full use of knowledges from many subjects, including : economy, management, complex science, math, computing simulation, etc. through the idea of " down to up ", i make every individuality ( company ) inside the industrial clusters as a cell ; and choose techological support, labor supply, natural resourses reserve, maket overlay, intermediary service, public foundation, govenment policies as the outside influencing features ; and choose total assets, total production value, output ratio of capital as the indexes of system characters. then, i establish a computing simulation model on the optimal scale of industrial clusters basing on cellular automata model by matlab software, and simulate the shifts of characters of sigle cell according to the changing environments

    本文主要以基於自然資源稟賦的水平共生型產業集群為研究對象，綜合應用現代經濟學、管理學、復雜性科學、數學和計算機模擬方法等多學科的知識，吸納「自下而上」的思想，選取技術支撐、勞動力供給、自然資源、市場輻射、中介服務、公共基礎、政府政策七個變量作為集群成長的外部影響因素以及總資產、總產值和資金產出率作為集群的系統特徵指標，以產業集群（系統）內部的個體企業為單位元胞，參照自適應、自組織的自然演化機制模擬單位元胞自身特質受到周邊環境的變化而改變，採用元胞自動機模型和matlab軟體，建立一個基於元胞自動機模型的產業集群規模演化的計算機模擬模型。
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