pressure transition 中文意思是什麼

pressure transition 解釋
壓力轉變
  • pressure : n 1 壓；按；擠；榨。2 【物理學】壓力，壓強；大氣壓力；電壓。3 精神壓力，政治[經濟、輿論等]壓力。4...
  • transition : n 轉變，演變，變遷，變化；飛越；過渡期；【音樂】變調，轉調；【修辭學】語次轉變；【語法】轉換；【...
  1. Fluid noise mainly comes from out put pulsation of rate of flow, the main reason of out put pulsation of rate of flow is the instant high pressure return flow that obturation cubage produced when the big round curve pressure transition. the v trough on the port plate can reduce the fluid noise. in this paper, the author based on the acting of dam a river and condensability of liquid and used matlab language as tool to calculate the v trough on the original port plate and drew out the p - t diagrammatic curve and analyzed its shortcoming and improved the design of original v trough and got that the best size of its angle was 12. 3 and its length was 5mm and the cross section was an equilateral triangle

    流體噪聲主要來源於輸出流量脈動，造成輸出流量脈動的主要原因是閉死容積在大圓弧段壓力切換時產生的瞬時高壓迴流，在配流盤上開設v型尖槽可降低因高壓迴流而引起的流體噪聲，本文以截流作用和液體的可壓縮性為理論依據，以matlab語言為工具，對原配流盤上的v型尖槽進行了理論計算，繪制出p - t圖線，分析了它的不足，並對原有v型尖槽進行了優化設計，得出了v型尖槽的最佳幾何尺寸：配流盤平面上的v型尖槽的兩邊的夾角為12 . 3 ，槽長5mm ，槽的橫截面為等邊三角形。
  2. Considering that no phase transition of enstatite with perovslite structure were found during these static high pressure experiments, the consistence of the bulk modulus also supports that the high pressure phase of perovskite structure of enstatite is stability between 50 - 140gpa

    考慮到靜高壓下的數據是在實驗中未發現頑火輝石高壓相有相變的情況下得到的。因此，動高壓與靜高壓實驗數據的一致性支持了在80 ? 140gpa壓力內預火輝石的高壓相保持穩定的觀點。
  3. This paper analysed working principles and controling features of water lifts about the head pressure transition. plc was used to operate controling system so as to work the system well

    摘要對水頭差壓力轉換提水裝置的工作原理及控制特點進行了分析，使用可編程式控制制器（ plc ）控制系統運行，使系統很好的工作。
  4. In order to approach the optimum design of changeover portion structural shapes for submarine ' s different diametral pressure cabins, a new structural type, named the double arc transition form, is introduced based on the analysis of stress concentration, by using the engineering calculation method and finite element mthod

    摘要為了探討潛艇不同直徑的耐壓艙室過渡段結構型式的最優設計，利用工程計算方法和有限元方法，分析過渡段結構的應力集中，提出了能夠使不同直徑圓柱殼光滑過渡的結構形式雙圓弧式過渡形式。
  5. Dsc for the nanocomposites showed the glass transition temperature ( tg ) of the nanocomposites increases slightly as the mmt content increases. water absorption velocity and water retentivity under pressure tests showed the addition of montmorillonite ( mmt ) can improve the beginning absorption velocity and water retentivity for pure superabsorbent resin

    吸水速率和加壓保水能力測試表明，一維納米級蒙脫土片層的引入能在一定程度上提高高吸水性樹脂的初期吸水速度和加壓下的保水能力。
  6. It is studied that the formation mechanism of taylor bubble and its control method in gas - liquid two - phase flow, which affects the pressure balance and mechanical driving efficiency in the flow of petroleum engineering. experiments show that the formation of taylor bubble in gas - liquid two - phase flow is due to the intensive congregation and amalgamation of small bubbles driven by void fraction waves and that the highly turbulent flow is able to restrain this formation. thus, the flow regime transition may be checked by increasing the flow turbulence and controlling the disturbed frequency

    對大管徑氣-液兩相流動中嚴重影響壓力平衡與機械驅動效率的段塞流生成機制和控制方法進行了研究，實驗證明段塞流的形成是由於空隙率波的大幅度增長使氣泡高度集中，並形成聚並所致。強湍流運動可以抑制taylor泡的形成。因此，通過強化湍流或控制擾動頻率可以對氣泡聚並起明顯的抑制作用。
  7. Focusing on the performance evaluating and the design of tripropellant injector, adopting the cold test rig with background pressure supply, malvem particle analyzer, ccd photography system, tripropellant hot test - bed, numerical simulation software and auxiliary theoretical a nalysis, the d ischarge c haracteristic a s w ell a s a tomization p erformance o f the injector and the combustion performance as well as the mode - transition characteristic of thrust chamber are studied detailedly based on the 3 different structures of coaxial tripropellant injector, large numbers of important conclusions are gained

    本文圍繞三組元噴嘴的性能評定及設計方法。採用反壓冷試臺、馬爾文測粒儀、 ccd高速攝影系統、三組元發動機熱態試驗臺、數值模擬程序及輔助理論分析等多種技術手段和研究方法，對三種結構的同軸式三組元噴嘴深入進行了噴嘴流量特性和霧化特性、推力室燃燒性能和轉工況性能研究，得到了大量重要結果。
  8. In this dissertation, we mainly report on a laser - produced plasma ( lpp ) source with liquid aerosol spray target. for sufficiently high backing pressure and low temperature, the valve reservoir gas of the light source can undergo a gas - to - liquid transition

    液體微滴噴射靶激光等離子體（ lpp ）光源是一種具有較高的軟x射線轉換效率且能夠長期連續運行的低碎屑光源。
  9. Chapter 2 is " review in the perspective of history ", it analysis the history progress and the basic law evolved in the chinese farmland institution, it indicates that the population pressure is the basic motive to drive the transition of the chinese farmland institutions. the population pressure would inevitably cause social crisis if rural labor can not be transferred completely, and finally leads compulsive population decrease through the dynasty change

    第2章「歷史視角的回顧」著重分析中國農地制度演進的歷史進程和基本規律，指出人口壓力是推動中國農地制度變遷的基本動力，如果不能實現農村勞動力的有效轉移，人口壓力必然導致社會危機，並以「改朝換代」式的大動蕩實現人口數量的強制性（災難性）調整。
  10. High proportions of poverty mountain regions are distributed all over the country and have many common characteristic as follows rugged ground convenient communication and information, low life level of the residents fragile ecosystem, scarce resources of water and soil, great environmental pressure, etc. located in the southeast of chongqing municipality, qianjiang district is one of the major poverty counties named by the sate council moreover, located at the vital organs part of china, transition region between the west and east, and the juncture of the four provinces ( chongqing, hubei, hunan, guizhou ) likewise, close to the region of the three gorges dam

    我國貧困山區面積廣大，遍布全國東西南北，有許多共同特徵；地表崎嶇，交通不便，信息不靈，經濟落後，人民生活貧困，生態脆弱，水土資源稀缺，環境壓力大等等。黔江區位於重慶市東南部，是國務院確定的重點貧困縣，是我國的一個具有典型意義的貧困山區，位於我國腹心地區和中、西部過渡地帶，地處渝、鄂、湘、黔四省市的結合部，又緊鄰三峽庫區，地理位置十分重要。
  11. We person of this a few generation, get the pressure of transition and attrition, though be mo ke how, total however unavoidable should raise some of doubt to new way of life and value orientaton

    我們這幾輩人，受到轉型的壓力和摩擦，雖說是莫可奈何，卻總不免要向新的生活方式和價值取向提出些質疑。
  12. The properties of lacamno3 films were enhanced dramatically with a post annealing treatment in high temperature and high oxygen pressure. the films show the highest so far tmi, which reaches the 300k, the transition of resistivity is kept in a narrow temperature range and the temperature coefficient of resistance ( tcr ) is about 5 - 8 %

    以高溫、高氧壓的條件對薄膜進行後退火處理，薄膜性質得到極大改善，轉變溫度點提高到了300k ，電阻?溫度系數也達到了5 - 8 ，不僅提高了轉變溫度點，而且使轉變保持在一個較窄的溫度區間內。
  13. The research on vertical conduit flow of gas - liquid two phases in wellbore aims at the classification, transition and judgement of flow pattern, according to the pressure distribution of oil - gas - water mixture in wellborne, by which the reliable basis will be provided for understanding of well performance, rational control / monitoring and regulating of well flow regime and the design of gas lift

    摘要井筒兩相管流研究的主要目的是用於井筒內流體流型的劃分和流型的轉變與判斷，其基本依據在於井筒內油氣水混合壓力的分佈狀況；在了解了井筒混合流體的壓力分佈狀況之後，能夠為掌握油井生產規律、合理控制和調節油井式作方式及氣舉設計提供可靠的依據。
  14. 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。
  15. 14 npt lead pressure transition joint and back welding lead - pressure tube code c12

    A2 . - 14npt引壓過渡接頭及後部焊接引壓管代碼「 c12 」
  16. A2. 14 npt lead pressure transition joint and back welding lead - pressure tube code c12

    A2 . - 14npt引壓過渡接頭及後部焊接引壓管代碼「 c12 」
  17. The solution formula of dwell time is deduced by using the pulse iteration method and the smoothing fourier transition method, and the formula can be simplified referring to workpiece shape. according to the anastomotic status of the tool and workpiece surface, we present the new model of the inherent relation among local pressure density, removal rate, convergence ratio and residual errors, and the corresponding formulas are given. the forming cause of the edge effect in the polishing process is analyzed, and the means which reduces the edge effect is put forward

    2 、針對計算機控制光學表面成形（ ccos ）的加工方式、誤差收斂特點，研製了去除函數呈高斯分佈的雙轉子結構研拋模；採用脈沖迭代法、平滑因子傅立葉變換法推導出駐留時間的演算法，求解過程中根據工件面形的特點作了各種形式的簡化；提出了工件表面和研拋模的吻合誤差與局部壓強、材料去除率、收斂比之間內在關系的數學模型，並推導出相應的計算公式；分析了邊緣效應產生的原因，在加工過程中採用相對壓力因子對去除函數進行修正，可以消除邊緣效應的影響。
  18. In lifting - surface theory, the non - liner phenomena of the trailing vortex in the transition wake area and of the tip vortex separation are considered. in surface panel method hyperboloidal quadrilateral panels are employed and the morino ' s analytical formulation is used to determine the influence coefficients. the more reasonable pressure kutta condition is satisfied at the trailing edge of propeller blade

    在計算中，對于升力面理論，本論文考慮了過渡區尾渦收縮和葉梢分離的非線型現象的影響；對于面元法，本論文採用的是計算較為簡便的基於擾動速度勢的基本公式及雙曲面形狀的面元，在槳葉隨邊滿足更趨合理的壓力kutta條件，並用morino導出的解析公式計算面元的影響系數的快速有效的數值預報方法。
  19. 1 2 - 14npt lead pressure transition joint and back welded lead pressure tube stainless steel

    1 2 - 14npt引壓過渡頭及後部焊接引壓管不銹鋼
  20. 1 2 - 14npt lead pressure transition joint and back welded lead pressure pipe stainless steel

    1 2 - 14npt引壓過渡頭及後部焊接引壓管不銹鋼
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