流體損失 的英文怎麼說

中文拼音 [liútǐsǔnshī]
流體損失 英文
hydraulic loss
  • 流 : Ⅰ動1 （液體移動; 流動） flow 2 （移動不定） drift; move; wander 3 （流傳; 傳播） spread 4 （向壞...
  • 體 : 體構詞成分。
  • 損 : Ⅰ動詞1 （減少） decrease; lose 2 （損害） harm; damage 3 [方言] （用尖刻的話挖苦人） speak sarcas...
  • 流體 : [物理學] fluid; fluor流體力學 fluid mechanics; hydromechanics; 流體生物學 hydrobiology; 流體運動學 hydrokinematics
  • 損失 : 1. （失去） lose 2. （失去的東西） loss; wastage
  1. The secular influence of solar mass - loss on the orbital elements of meteor steams is examined by using the method of celestial mechanics of variable mass in this paper

    摘要將作者在變質量天體力學所得理論結果應用於太陽質量損失對流星群軌道根數變化的長期效應上。
  2. But when fault was occurred, sometimes there would be great loss. for the reason, the paper put forward a microcomputer bus protection scheme suit for mv or lv power system with low current grounding based on the great researching about the working theory of current bus protections and the characteristic of mv or lv system with low current grounding. based on it, the paper has designed the platform of the hardware and the software programs

    針對國內目前中、低壓電網大都未裝設母線保護裝置，發生故障不能及時切除時造成很大損失的狀況，本文在廣泛研究當前主流的母線保護動作原理並認真分析了中、低壓小電流接地系統特點的基礎上，提出了一套適合中、低壓微機母線保護裝置的研製方案，並據此選擇、搭建了硬體平臺，設計了軟體功能程序。
  3. Based on the ostwald - de waele equation, the leakage characteristics of power - law transmitted by helical gear pump are researched, and the leakage model of power - law in the clearence is founded, and - the velocity distributing and the leakage capacity are worked out by the boundary condition. the power loss of leakage is got through the clearence leakage capacity, and the friction power loss is attained by the velocity distributing. the mathematic calculation model

    利用冪律流體本構方程，首次對聚合物流體在斜齒齒輪泵中的漏流特性進行了研究，建立冪律流體在間隙中的泄漏模型，利用邊界條件求出速度分佈及泄漏量；由間隙泄漏量得到漏流損失功率，由速度分佈得到流體摩擦功率損失，並得到間隙最優解的數值計算數學模型，同時給出實例及數值計算結果。
  4. The numerical computation for the secular variable of the semi - major axis, solar distance at perihelion, orbital periods and longitude of perihelion has been made for fifteen meteor streams by using the solution of gylden - meshcherckii equations

    利用g - m型變質量天體軌道根數變化方程的一階和二階解對15個流星群軌道半長軸、近日點距離、軌道周期和近日點經度因太陽質量損失造成的每世紀的長期改變效應做了數值計算，並得出計算結果。
  5. In the proposed method, the controller takes the buffer length as congestion indication, takes sources quality and bandwidth utility as object function so as to learn on line. as the controller outputs, the coding rate for input traffic sources and the corresponding user percentage are used to adjust the cells " arrival rate to the multiplexer buffer. compared with the previous method where cells " arrival rate is tuned only by the encoding rate and the encoding rates for all input traffic sources are regulated in a body, the proposed method guarantee that the quality of cells are optimal while cell loss rate is minimized, which means quality of service is guaranteed

    在該方法中，擁塞控制器以緩沖區大小信元作為擁塞指示，以信源質量和帶寬利用率作為目標函數進行在線學習，控制器輸出包括信源編碼率及其對應的用戶數在全部用戶中所佔的百分比，即根據信源編碼率及對應的用戶百分數調整信源輸入流，從而克服了以往擁塞控制方法中僅僅調整編碼率帶來的對所有信源進行整體調整的缺陷，使控制系統在信元損失率最小情況下確保信源輸入流質量最高，從而有效地利用了網路帶寬。
  6. The preparation of chain transfer, the mol percent of pea : aa : mma and the time of combind were systermic investigated. the performance of pc was refledted by the neat cement paste fluidity and fluidity losing. the results indicated : ( 1 ) the preparation of chain transfer was one of most factor of control the molecular weight of copolymer and influence the performance of pc

    通過測定減水劑的水泥凈漿流動度及流動度損失宏觀反映合成減水劑共聚體pc的性能，研究結果表明： （ 1 ）鏈轉移劑是控制共聚物分子量影響共聚體pc性能的主要因素之一，在選擇鏈轉移劑zy 、用量為8 aa時的作用效果最佳。
  7. The ejected coolant interacts with the external flow near the endwall and generates aerodynamic and thermodynamic losses in the process. this reduces turbine stage efficiency and together with the consumption of cooling air is detrimental to the overall cycle efficiency

    但這種方法中噴射的冷空氣與端壁附近的外流場相互作用產生氣動力和熱動力損失，並且消耗冷卻空氣，從而損害渦輪的整體循環效率。
  8. 3. on boiler retrofit, the calculation of fuel burning, the heat calculation of boiler inside structure and convection section, and the design of structure parameter of feed water heat exchanger are made. the flue gas channels " resistance calculation and the boiler strength verifying are also carried out. replacement of water cooling wall improves heat exchanging and decreases loss of heat radiant

    對鍋爐本體進行了燃料燃燒計算、爐膛結構熱力計算、對流受熱面結構熱力計算、鍋爐給水加熱器結構參數設計、煙道阻力計算及鍋爐元件強度校核等；改進了水冷壁布置使換熱效果更好，減少輻射換熱損失；改進對流段結構，更充分的利用爐膛出口煙氣余熱，提高熱效率；並且進行了煙氣阻力計算、熱效率計算和能量平衡測試，對改進后的稠油燃料和改進前進行了對比，燃燒狀況和熱效率有明顯改善。
  9. 4. based on the viscous hydrodynamics, the leakage characteristics of newton liquid that is transmitted by helical gear pump are researched for the aim of the least power loss, and the leakage model is founded, the mathematic models of the radial and the axial leakage are gained. at the same time the optimal radial leakage and axial leakage are got, and the numerical calculation is achieved

    基於粘性流體力學，以功率損失最小為目標，首次對牛頓流體在斜齒齒輪泵中的漏流特性進行了研究，建立了泄漏模型，分別得到了斜齒齒輪泵的徑向和軸向泄漏的數學計算模型；同時得到了斜齒齒輪泵最佳徑向間隙和最佳軸向間隙，並在此基礎上進行了數值計算。
  10. After analyzing and study two transitions of map to spatial data and spatial data to map, the author thinks the spatial data capturing is a loss map information process, and for map production firstly symbolize from spatial data, then reinforce the map information. the map production model ( mpm ) is the summary of all kinds of map production. the integration model is the best model in mpm and it infers that " spatial data first, map second " is the production process

    提出了「靜態數字制圖」和「動態數字制圖」的概念，論述它們各自特點和研究方法，並提出地圖制圖和空間數據生產都屬于「靜態數字制圖」 ；通過研究地圖和空間數據的相互轉換過程，發現空間數據生產是地圖信息損失的過程，根據空間數據來進行地圖生產必須先實現地圖符號化，然後再進行地圖信息的補充處理；本文提出的「地圖生產模型」是現有各種數字化生產模式的基礎，從理論上論證了一體化生產模式是最優模式，推導出「先空間數據生產，后地圖出版」的一體化生產流程，並歸納總結了當前數字化生產的4種基本生產模式和9種應用情況。
  11. In this paper, high heat penetration into a moving particulate bed is described mathematically with a comprehensive heat and mass transfer model. the distribution of gas velocity and pressure, the temperature field of gas and solid in the moving particulate bed are examined for different conditions. the results show that thermal penetration into the moving packed - bed particles by fluid flow in porous media is high only in the position near the gas entrance. the thermal penetration thickness tends to increase with the fluid flow velocity and decrease with the particle moving velocity. in the region of thermal penetration, the porosity of solid bed has significant effect on gas field and pressure loss. it is feasible to reduce the gas pressure loss by a larger width / height packed bed in design and operation. the correspondence between thermal infection depth and particle bed height would be helpful to keep high oapacity of reactor and reduce the cost of operation

    針對移動顆粒床中物料層內的高溫氣體滲流傳熱現象，考慮滲流與傳熱的相互作用，採用局部非熱平衡假設建立了多孔介質滲流傳熱物理數學模型並進行了數值計算.研究了不同情況下床內填充多孔介質中的流速、氣固溫度和床層壓力損失.計算結果表明，高溫熱氣對移動床顆粒料層的熱滲透主要發生在滲流入口端區域，增大入口滲流速度以及減小床層物料下移速度將導致物料溫度沿床高慢速下降，熱滲透深度擴大，熱滲透作用區域內的物料溫度水平提高.在熱滲透作用區域，孔隙率對流場和壓力損失有很大的影響.研究結果對于移動顆粒床反應器的設計與運行具有一定的參考作用
  12. Fluid network was divided into a lot of independent loops. through changing states of valves, i got pipe flux and pipe pressure drop. based on pressure balance equation, i built the differential equation system, solved the differential equation system, and acquired resistance coefficients of pipes and component

    並將流體網路圖分解為一個個獨立迴路，通過改變閥門的狀態，來獲取迴路各管段流量和壓力損失，根據迴路壓力平衡方程，建立方程組，對方程組進行了求解，解出了各未知管段、流體器件的阻力系數。
  13. The emulational calculating theories of traction power supply system ' s operating charts combine with actual things of engineering design at present in chapter three, to set up traction web current distributing mathematical model, integral distributing mathematical model, locomotive distribution and obtaining current model at every moment, and on which making use of mathematical planning methods to set up mathematical models is based at every moment in every instance interval of the railroads. for instance, instantaneous current, instantaneous voltage descent and effective current, main changing capacity and so on, in addition, there are the minimum power shortage model, the optimal transformer substation location, the least engineering expenditure, the optimal mathematical model of traction power supply system. optimize design ' s algorithm of traction power supply system is introduced in detail in chapter four, where programming idea and realizing method of the computer software are given an explanation

    本研究主要進行了以下工作：結合牽引供電系統運行圖的模擬原理和現行工程設計的實際情況，建立了牽引網電流分佈、積分分佈、任一時刻機車分佈和取流的數學模型；應用數學規劃方法建立了任一距離區間、任一時刻的瞬時電流、瞬時電壓降數學模型和有效電流、主變容量和主變壓降、最小功率損失、最佳變電所容量、最佳變電所位置、最少工程費用、最少運營維護費用和牽引供電系統方案最優等方面的數學模型；闡明了牽引供電系統優化設計的演算法和計算機軟體編程思想及實現方法；進行了工程實例計算；最後，對牽引供電系統優化設計技術應用進行了總結。
  14. The second chapter simply introduces the development of alternate asynchronous inverter technology and retrospects some types of energy - saving systems for hydraulic elevators. then the working principles of the project are discussed and analyzed at four different working status, i. e. light load upwards, heavy load upwards, light load downwards and heavy load downwards. and the chapter focus on the introduction of structure design of pump station, calculation and type selection of pump / motor reversible units, research on oil leakage principles of accumulator circuit, design of accumulator - pump / motor pressure - energy transformer and integrated valve blocks, etc. the last but not the least, the electrical wiring of vector inverter control cabin and design of computer control and data acquisition system are introduced

    論文第二章首先簡單介紹了交流異步電動機變頻調速技術的發展概況，在回顧電梯液壓控制系統節能技術的基礎上，介紹了本課題研製的「採用蓄能器的液壓電梯變頻節能控制系統研究」的基本原理，分析了動力系統在電梯轎廂輕載上下行、重載上下行等四種典型工況下的基本工作狀態和工作方式；詳細地介紹了本課題節能系統液壓動力泵站的結構設計和參數設計，重點研究了液壓動力泵站的結構設計、液壓泵馬達可逆性問題及其選型設計計算、蓄能器迴路泄漏油損失機理的研究及其補償裝置的設計、蓄能器-泵馬達壓力能量轉換裝置的設計、多功能集成控制閥組的設計等內容；最後簡單介紹了本課題矢量控制變頻控制櫃的外部附件電氣接線、計算機控制及數據採集系統的硬體設計等內容。
  15. Because the ore has been mined for long time, the nature geological environment has been getting worse and worse, such as the baldness of mountain body, the rock is weathered to pieces, a lot of loose material distributing along the gully and its banks, the disaster of debris flow is seriowsly, and the production of the mine is constrained by debris flow disaster ; for example, a debris flow broke out on august 1999 and resulted in catastrophic hazards to the jingtieshan iron mine, resulted in a huge economic losses of 50 million yuan

    鏡鐵山礦是酒鋼最主要的鐵礦石生產基地，礦區山高溝深，地質構造復雜，自然地質環境較差，在長期人為開采活動的影響下，地質自然環境進一步惡化，山體裸露，巖層破碎，大量鬆散固體物質堆積在溝道及溝道兩側，泥石流災害十分嚴重，嚴重製約了礦山的生產與發展。 1999年8月礦區黑溝南溝暴發生了嚴重的泥石流災害，致使礦山停產10多天，造成5000多萬元的經濟損失。
  16. The open angle, head loss and hydrodynamic pressure under the rated flow and several kinds of proportion are carefully observed in the model test, and these results are given for reference in engineering design

    階段模型試驗中詳細觀測了在額定流量下，不同比重拍門的開啟角度，水頭損失及門體動水壓力變化情況，以供工程設計應用參考。
  17. One side, groovy cast steel flap valves increase the head loss, waste electricity, the other side, when flap valves close, it always delay time because of it ' s low proportion. the bump load seriously threaten the safety of pumping station. through the research and development of flap valve used in the renovation practices in the design of air - filled floating flap valve in no. 1 chuhe pumping station of anhui province, the working characteristics and design methods of air - filled floating flap valve are studied in this paper

    但在拍門運行使用的同時，又時常暴露出一些缺陷，主要有：一是常規的鑄鐵或鑄鋼拍門加大了流道的水頭損失，特別是對于裝機容量較大的排澇泵站，其電能損耗相當可觀；二是拍門在自重下下落關閉時，往往由於過多考慮水頭損失導致浮重過小而延誤閉門時間，致使水體倒灌，再因緩沖裝置失靈導致閉門時門體對門框撞擊力很大，嚴重危及站身安全。
  18. A mathematical model of flows in the substrate was established using the equivalent continuum approach, and multi - dimensional numerical simulation of the steady flows in the catalytic converters was performed. simulation results show that the separation and vortex, which cause the pressure loss and the velocity non - uniformity at the front of the first substrate, are generated near the wall of the conical pipe. in addition, the larger the inlet cones angle the more the pressure loss and maldistribution in converters, however, when the angle enlarges enough the pressure loss would be decrease

    結果顯示氣流在擴張圓錐管壁附近出現分離產生較強的擾動，造成局部流動損失和載體前氣流速度沿徑向分佈不均勻；入口擴張管結構對催化器的流動特性有很大影響，但並非擴張角越大，催化器流速武漢理工大學碩士學位論文分佈的不均勻性和壓力損失也增大，而是存在著一個最佳角度，但當擴張角增大到一定程度以後，擴張角對流速分佈和壓力損失的影響變小。
  19. These fire - safe valves provide a bubble tight barrier on both upstream and down stream seats and eliminate possible product contamination or loss of fluids due to valve leakage

    這種防火安全閥門在上游和下游閥座提供氣密性屏障關閉性能，消除了由於閥門泄漏造成產品污染或流體損失的可能。
  20. Tecsis supplies hydraulic force measuring systems with special devices that allow the sensor to be dismantled under pressure and without bringing the machine to a standstill or suffering fluid loss

    Tecsis供應的液壓力測量系統採用特殊裝置，可使傳感器受力時不用停止機器運轉或導致流體損失。
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