氣壓梯度力 的英文怎麼說

中文拼音 []
氣壓梯度力 英文
pre ure gradient force
  • : Ⅰ名詞1 (氣體) gas 2 (空氣) air 3 (氣息) breath 4 (自然界冷熱陰晴等現象) weather 5 (氣味...
  • : 壓構詞成分。
  • : Ⅰ名詞1 (梯子; 樓梯) ladder; stairs; steps; staircase 2 (姓氏) a surname Ⅱ形容詞(形狀像樓梯的...
  • : 度動詞[書面語] (推測; 估計) surmise; estimate
  • : 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...
  • 氣壓 : [氣象學] pressure; atmospheric pressure; barometric pressure; gas pressure; air pressure
  1. In chapter 2, the meteorological knowledge, data and the methods of the data processing, related to the study on the atmospheric loads, are simply presented. the model for the perfect gas constant, describes by the relative moisture, is developed. the influences of the variation in the vapor component in the atmosphere on the perfect gas constant are evaluated by using the changing characteristics of the temperature on the surface, its spatial gradient and the barometric pressure

    第二章:簡要介紹大負荷研究所需的象科學知識、資料及其數據處理方法;建立相對濕表示的大體常數模型,利用地面溫和空間垂直溫變化的規律估算大水汽組分變化對比體常數的影響;對中國及鄰區的地面記錄進行了預處理和網格化
  2. Through studying it is shown that in chagan sag, the geothermal gradients in the center are higher than those around the sag margin and major factors influencing the characteristics of temperature field distribution are the property of geotectogenesis and the differences in tectonic portion, lithology and underground water behaviour ; there are three types of mudstone compaction, i. e. normal compaction, undercompacition and overcomepaction ; there are two pressure systems in sandstone reservoirs, i. e. normal pressure and negative pressure systems and the strata ' s being uplifted and denuded is the key factor leading to the formation of the negative pressure system in reservoir ; and the distinctive temperature - pressure field characteristics in the sag are possessed of important petroleum geological significance in hydrocarbon source maturity, hydrocarbon generation, widening on oil and gas exploration domain and selecting exploration targets, etc

    研究表明,查干凹陷中心的地溫高於凹陷邊緣,大地構造性質及所處構造部位、巖性與地下水活動的差異是影響凹陷地溫場分佈特徵的主要因素;泥巖實存在正常實、欠實和過實三種類型,砂巖儲層段類型可分為正常和負兩個系統,地層抬升剝蝕是導致儲層負系統形成的主導因素;凹陷獨特的溫場特徵對烴源巖成熟、油生成、油勘探領域的擴大及勘探方向的選擇等具有重要的油地質意義。
  3. The diagnostic analysis for the sandstorm process on the base of height, temperature, pressure and wind etc output from the model shows that the upper cold trough, low - level wind shear, surface cold anticyclonic ridge, mesoscale cyclone and cold front are the main synoptic systems, surface cold anticyclonic ridge and cold front provide condition of wind force to occurrence of the sandstorm weather, the strong mesoscale cyclone before front makes pressure gradient before and after cold front obviously strengthen, moreover, and it increases obviously the temperature of the controlled area, as a result, the updraft movement caused by convergence before front strengthens

    500hpa強鋒區、 700hpa切變和鋒前中尺系統的強弱及位置變化是沙塵暴天發生發展到減弱的直接原因。地面冷高、地面旋及冷鋒是造成本次沙塵暴天的主要地面天系統。地面冷高及冷鋒為沙塵暴天的發生提供了風條件,而中尺旋使冷鋒前後明顯增強外,又使所控制的區域增溫明顯,使鋒前輻合上升運動加強,為沙塵暴天的發生提供了熱、動條件。
  4. Compress disk is the very important rotational component in the areoengine. when the compress disk is working, the grads of temperature and stress between the rim and the center of the disk are great. in order to raise the thrust - weight ratio of the disk and reduce oil consumption. the best prospective way is the dual alloys disk used

    機盤是航空發動機上一個很重要的轉動部件,機盤工作時,輪緣和輪轂溫和應較大,為了提高飛機發動機推重比、減低耗油量,要求機盤的工作溫、使用性能更高,雙合金盤製造是最有發展前景的技術。
  5. And the relationship between the size of a cavity and the velocity of cross - flow gas was investigated

    當錯流速或足夠大時移動床內將發生空腔,空腔大小隨錯流速的增大而增大。
  6. Through the thermodynamic analysis for the sandstorm weather according to the simulated potential temperature, potential vorticity field, it is found that this sandstorm weather occurred in the condition of the atmospheric stratification stability, the area of the high potential temperature value and the potential temperature gradient have a good corresponding relationship with the surface cold air and cold front, so are the strength of potential vorticity and the different developing stage of sandstorm

    利用輸出的位溫、位勢渦場,對沙塵暴天進行熱動條件分析,發現本次沙塵暴天發生在大層結穩定狀態下,位溫大值區及位溫與地面暖低的強弱和移動有著很好的對應關系,位渦的水平分佈特徵和強弱變化對沙塵暴的出現時間和落區有一定的指示意義。
  7. In the third chapter, the mathematical models of project system have been established, and simulation has been done on the simulink enviroment of matlab software kits. the simulation focus on the effects of main parameters on the dynamic characteristics of speed control system, and the main parameters include viscosity damp coefficient and friction torque of electrical motor shaft, internal leakage coefficient of pump / motor of hydraulic circuits, gas volume of pressure accumulator, viscosity damp coefficient of cylinder piston and different running building floors, etc. at last, theoretical research effects of the flow and pressure pulsation of pump / motor on car speed and oil volume leakage theory are discussed. the fourth chapter of this thesis concerns the research on the key items about hydraulic power control system according to the ens 1 - 2 and other hydraulic elevator standards

    論文第三章針對組成系統的各個模塊進行了機理建模,並且通過matlab軟體中的simulink圖形化模擬環境進行了本課題系統的模擬研究,主要針對影響系統特性的主要參數變化,動態分析系統的輸出特性,在上下行工況中,分析了電機軸系粘性阻尼系數、軸系摩擦矩、主迴路蓄能器迴路液泵馬達內泄漏系數、蓄能器體容積、液缸柱塞粘性阻尼摩擦系數以及不同運行樓層工況等參數對系統特性的影響;最後對軸向柱塞泵馬達的流量脈動對電轎廂速的影響和蓄能器內油液體積損失機理進行了理論研究。
  8. The main factors affecting percolation in low permeability reservoirs include stress, threshold pressure gradient, slippage effect and water - blocking effect, which play various roles on percolation, but all will result in non - linear percolation in the end

    影響低滲藏滲流特徵的主要因素有應作用、啟動、滑脫效應和水鎖效應等因素,並且這些因素對滲流影響各有不同,但最終均引起低滲藏滲流的非線性化。
  9. Release of the heat of fusion is believed to alter the pressure gradient in such a way as to diminish the destructive winds near the storm center

    人們認為融解熱的釋放可以改變,結果減小風暴中心附近的破壞性風
  10. The results of numerical experiments, using the four - dimensional variational data assimilation system of the nonhydrostatic mesoscale model mm5, show that : the tangent linear model and adjoint model conducted by keeping the " on - off " switches the same as the basic state, can provide a good approximation of the first - order information to the nlm perturbation and a good descent direction for the minimization procedure ; switching on and off at every other time step in the kuo cumulus parameterization scheme do n ' t impact the convergence rate of cost function ; the existence of the switches do n ' t impact improvement to the mm5 model rainfall prediction because that not only specific humidity, but also wind, temperature and pressure are assimilated into the model

    非靜中尺數值模式mm5的四維變分資料同化系統進行的數值試驗結果表明: 「開關」變量保持與基態一致,所構造的切向線性模式能夠提供關于非線性模式擾動的一階近似,伴隨模式所計算的值能夠為最小化過程提供較好的下降方向;郭氏降水參數化方案中對流每隔一個積分步的交替發生並不影響目標函數最小化的收斂速; 「開關」變量的存在也不影響將風、溫和比濕結合起來同化對mm5降水預報準確性的提高。
  11. Selective absorption of electromagnetic wave. adw employing gases which do n ' t absorb the laser energy can form a gas urtain " whose pressure of the two sides is equal to the low pressure of laser cavity and the ambient circumstance pressure respectively so it can isolate the higher pressure ambient air from entrancing into the laser cavity and maintain the hel ' s running normally

    動窗口利用對激光器輸出波長沒有任何吸收作用的特殊體作為窗口工作介質,並根據體動學部分相關原理,能生成一個具有與激光腔低和環境大相匹配的、並把激光器低工作介質和外界大相隔離的「幕」 ,從而保證高能激光器的正常工作。
  12. A convenient model of pressure gradient calculation of gas - liquid slug flow in vertical wellbore

    垂直井筒液段塞流的簡便演算法
  13. The structural vibrational equations for the former are also depicted. the disturbance torques imparted by space environment are analyzed, which include gravity gradient torque, solar pressure torque, aerodynamic torque and magnetic torque

    對作用在衛星上的各種空間環境矩進行了分析,包括重矩、太陽光矩、矩、剩磁矩等。
  14. On the contrary, if temperature gradient is relatively low, combustor only undergo low compressive stress at high temperature. the combustor of engine has a longer life length. these results can provide some reference for maintain and design for gas turbine combustor

    分析也表明,若在起動過程中筒壁的溫較為平緩,火焰筒的膜唇邊在起動完成後始終受微小的作用,火焰筒的壽命可以大大延長。
  15. The forces acted on the bubbles are drag, virtual mass, lift, wall lift, pressure gradient, and gravity

    泡受包括相間阻、虛質量、升、壁面升和重等。
  16. The effective optimization design programs for different cases are developed by integrating the following several aspects which involves the flow analysis, adjoint equation solution, gradient solution, optimal arithmetic and grid generation. some practical design tests for airfoil and wing show that the continuous adjoint approach is very effective and useful method for aerodynamic optimization design. at the same time, we have done the research of aerodynamic optimum design for airfoils by using navier - stokes equations

    ( 4 )研究了基於控制理論和三維navier一stokes方程的優化設計理論,在計算坐標下詳細推導了該優化設計理論,得到了計算坐標系下描述的共扼方程數學描述形式,並以給定目標分佈的動反設計為例,導出了相應的共扼方程邊界條件,以及關鍵的求解具體表達形式,為了求解方便,把計算空間上描述共扼方程表達形式變換到物理空間中進行描述,通過與ns方程表達形式對比分析,最終給出了一種直觀的共轆方程表達方式。
  17. By using diffusion welding method ( under certain welding parameters such as temperature, pressure, time and atmosphere, etc ) and employing rational structural control technique, a kind of 93w - ofc - tc4 - a1 - mb2 system flier - plate with good parallelism, planeness and high densification was prepared, which met the needs of initial design and the basic requirement of flier - plates

    利用平面擴散焊接法(控制一定的溫、時間、氛等條件) ,同時採取合理的結構控制方法,成功實現了93w - ofc - tc _ 4 - al - mb _ 2的整體連接,得到了平面性好、平行精高、整體緻密的波阻抗飛片,滿足了設計結果和飛片的基本結構要求。
  18. A computed study was undertaken to determine the effects of minute vortex generator jets on the zero pressure gradient turbulence boundary layer

    本文採用數值模擬方法研究了微型空渦流發生器對零湍流邊界層的影響。
  19. If there are high temperature gradient between cool liner and hot liner, compressive plastic strain appear at that transient time, which lead to gas film wall bearing high tensile stress at high temperature. high tensile stress is one of main reasons which destroy combustor

    分析表明,起動過程中由於熱傳導滯后引發的溫可以導致火焰筒膜唇邊在起動瞬間發生較大的縮塑性應變,進而使得該區域在工作時承受較高水平的拉伸應,高的拉應會導致火焰筒萌生裂紋。
  20. A number of overall correlations have been developed for the prediction of the pressure gradient in the vertical flow of gas-liquid mixtures.

    為了預測液混合物垂直流動的,已經得出了許多整體相關規律。
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