正壓流 的英文怎麼說

中文拼音 [zhēngyāliú]
正壓流 英文
barotropic flow
  • 正 : 正名詞（正月） the first month of the lunar year; the first moon
  • 壓 : 壓構詞成分。
  • 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...
  • 正壓 : barotropic
  1. One of factors which activize the explosive development of cyclone exists strong convective instability in lower layers from the analysis of the barotropic potential vorticity

    由正壓位渦分析得出，氣旋爆發性發展的啟動因子之一為低層存在強對流性不穩定。
  2. In a word, convective instability strong baxoclinicity barotropic advection of potential vorticity and latent heat release are factors which activize this explosive development of cyclone

    總之，對流不穩定、強斜壓性和正壓位渦平流、潛熱釋放是本次氣旋發展的啟動因子。
  3. Inertial instability barotropic advection of potential vorticity the subsidence of the large value of potential vorticity above cyclone and geostrophic adjustment process is dynamical factors which make the cyclone developed violently

    慣性不穩定，正壓位渦平流以及正壓位渦大值下沉至氣旋上空和地轉適應過程是氣旋強烈發展的動力因子。
  4. The ve > tical structure of such a circulation is found to be quasi - barotropic in northern spring and winter seasons

    與此相對應，在整個對流層，該環流在春/冬季呈相當正壓結構。
  5. Among the pathophysiological mechanisms, the sudden shift from a positie to a negatie intrathoracic pressure plays an important role since it results on the one hand in an increased pressure gradient for systemic enous return and in cardiac preload and on the other hand in a decreased pressure gradient for left - entricular ejection and an increase in left - entricular afterload

    在諸多病理生理學機制中，胸內正壓向胸內負壓的突然轉換扮演了重要作用，一方面，是由於增加了體循環靜脈迴流的壓力梯度和心臟前負荷，另一方面，降低了左室射血的壓力梯度並增加了左室后負荷。
  6. In this thesis hydraulic experimental studies and theoretical analyses on the vortex - flow drop shaft were conduced and the following results were accomplished : ( 1 ) in the model test some hydraulic characteristics including the shape of air core in the center of the drop shaft, the radial distribution of water flow velocity and the distribution of pressure on the wall of the drop shaft were measured under the condition of high water head above 250m and large discharge above 1400m3 / s. ( 2 ) a kind of computational method for the spiral water flow in the air core region of drop shaft was discussed and applied and the results agree the experimental data well. ( 3 ) the total ratio of energy dissipation in the drop shaft can reach 90 % and the energy dissipation in every region was discussed quantitatively

    本文通過試驗研究與理論分析對旋流式豎井泄洪洞應用於高水頭、大泄流量情況時存在的一些水力學問題進行了研究和探討，取得以下主要成果：一、結合小灣工程導流洞改建，對高水頭（ 252m ） 、大泄流量（ 1400m ~ 3 s ）條件下旋流式豎井中的水流運動特徵進行了比較全面的測量，包括空腔形態、徑向流速分佈及井壁壓強等；二、提出了豎井空腔段螺旋水流水力計算方法，其計算結果與實測值吻合良好；三、利用試驗與計算結果，對旋流式豎井的消能機理進行了探討，對豎井各部分的消能能力有了總體認識；四、對豎井下部消力井的合理井深進行了優化試驗研究，發現消力井合理深度為0 . 9d左右；五、通過試驗研究，歸納出豎井水流總摻氣量估算方法，為導流洞排氣方案的設計提供了參考依據；六、在高水頭、大流量條件下，豎井空腔段下部流速很高，盡管水流螺旋運動引起的離心力可以確保井壁壓強保持正壓，但空化數依然較低，因此豎井的空化空蝕始終是工程界關注的重大問題。
  7. Assess client ' s baseline knowledge of positioning, cpap / bipap, and pefr

    評估病人體位、穩定氣道正壓/雙水平式呼吸道正壓和呼氣流速峰值知識。
  8. The evolvement of the rainstorm also closely related to the developments of the subsynoptic scale flow fields and the mesoscale barotropic component

    （ 2 ）次天氣尺度流場與中尺度正壓分量的演變與此次暴雨的醞踉、發展和消亡也有很好的對應。
  9. With the research of the evolvement features of barotropic and baroclinic atmosphere flow fields, the mechanism has been studied of the formation, development and die out of the heavy rainfall which occurred in wu - han during the period of 21 - 22, july 1998. the results are shown as follows : the evolvement of the rainstorm has a close relation to the barotropic component of the real atmospheric flow filed. and the barotropic component is, to a certain degree, also responsible for the coupling characteristics of high - and low - level jets

    本文從研究大氣正、斜壓流場的演變特徵入手研究了1998年7月武漢的一次強暴雨發生、發展、消亡全過程的機理，研究結果表明： （ 1 ）未經過尺度分離的實際大氣流場正壓分量的演變與此次暴雨的醞踉、發展和消亡相對應，並且正壓分量在一定程度上反映高、低空急流耦合特徵。
  10. Hydraulic fluid power. positive displacement pumps and motors

    液壓流體動力.正排量泵和電動機的測定
  11. Xh rubber slowly - closing cut - off vavle is a new water supply and drainage vavle with full rubber structure, duck - mouthed appearance and functions or positive flow - in and reserve cut - off. according to thrust analysis and calculation as well as different operation mechanism and different rubber products by special processing. all will be open at weak hydraulic pressure is higher, the vavle gate will open more greatly and the water flow is greater. at reserve operation, the vavle gate closes naturally and seals tightly cut - off vavle ; the back pressure is higher, the vavle gate closes more tightly and the seal effect is better. it is used widely in various drainage exit to prevent from pouring backwards and flowing backwards in city planning, water conservancy and sewage disposal etc. it is the ideal productto replace flap vavle

    Xf型橡膠緩閉逆止閥是一種全橡膠結構外形呈「鴨嘴狀」 ，具有「正向流入反向逆止」功能的新型給排水閥門產品。它根據受力分析和受力計算，針對不同的工況，採用不同的設計機理，選用不同的橡膠配方，並按特殊工藝製作而成。正向工作時，水由進水口流入，微小的水壓，便能打開閥門，水壓越大，閥門開啟越大，水流量越大。
  12. Study on pressure drop of two phase flow in positive pneumatic conveying system

    麵粉正壓氣力輸送的兩相流壓損研究
  13. Hydraulic fluid power - on - line automatic particle - counting systems for liquids - methods of calibration and validation

    液壓流體動力.液體的在線自動粒子計數系統.校正和驗證方法
  14. On the base of the quasi two - stage compression heat pump system with economizer, considering that it can make use of the pressure energy of liquid with high pressure and minish energy losing of the system, ejector is adopted to replace the throttle in the assistant loop, and design the quasi two - stage compression heat pump system coupled with ejector

    本課題正是在帶閃發器準二級壓縮熱泵系統的基礎上，考慮到噴射器元件可以有效利用高壓流體壓力能，減小系統能量損失的優點，將其引入系統以替代輔路節流閥，設計出了準二級壓縮?噴射復合熱泵系統。
  15. In the upper troposphere, there is no intact asian active center. the troposphere structure of summertime ao is implicated with the horizontal heterogeneity of air temperature throughout the whole troposphere with its center over asian continent, which results in the zonal asymmetry and baroclinic structure of the summertime ao ( especially its asian center ). on the contrary, the correlation between wintertime ao and sea - land thermal contrast confines in the lower troposphere, hence its zonal asymmetry and baroclinity in the lower level

    夏季北極濤動的這種結構與對流層整層的溫度水平分佈不均勻性有密切聯系，且這種溫度分佈差異主要體現在亞洲大陸，因而也就使北極濤動的中緯度亞洲中心呈現出比同緯度帶其它區域更為明顯的緯向非對稱性和斜壓性；而冬季北極濤動受下墊面海陸分佈差異影響，其緯向非對稱型和斜壓性質主要出現在對流層中低層，在對流層高層表現出很強的環形模態和正壓結構。
  16. The wind - driven circulation and its dynamical mechanisms in the south china sea ( scs ) were studied numerically using ecom - si model with 10 " x 10 " horizontal resolution and 20 sigma levels. the present work focuses on the barotropic circulation in winter and summer

    本文用ecom - si模式， 10 』 10 』水平解析度，垂向20個層，由h / r （ 1983 ）氣候學月平均風應力場和開邊界流量驅動，模擬了南海風生環流的季節變化，並針對南海冬夏季風生正壓環流的動力機制進行了數值實驗。
  17. In order to size a stop - check the technical information needed is saturated steam gage pressure in pounds per square inch and actual required steam volume flow in pounds per hour

    為了確定正確的截止止回閥的通徑，需要下列有關的技術參數，飽和蒸汽表壓（磅/平方英寸） ，和實際所需的正氣流量（磅/小時） 。
  18. The baroclinic component of the real atmospheric flow fields played a dominant role during the torrential rain. with the development of the rainstorm, the barotropic component of the real atmospheric flow fields decreased, along with the baroclinic component increasing

    暴雨前後，實際大氣流場的斜壓性一直佔主導地位，並且隨著暴雨的發展，實際大氣流場的正壓性減弱而斜壓性進一步增強。
  19. With the development of the storm, the barotropic component of the mesoscale flow field was decreasing and the baroclinic component was reinforced. on the contrary, the barotropic component of the subsynoptic scale flow fields was reinforced and the baroclinic component was decreasing. the baroclinic kinetic energy played a key role in the process of the rainstorm.

    暴雨前後，次天氣尺度與中尺度流場的斜壓性都是佔主導地位，隨著暴雨的發展，中尺度流場的正壓性減弱而斜壓性進一步增強，而次天氣尺度流場的正壓性增強而斜壓性減弱。
  20. The stability, rheology, chain structure and consecutive medium model in magnetorheological fluids are analyzed. according to the contribution of shear stress and normal pressure in polishing zone, the quantificational machining model of mrp is presented. as an example of plane workpiece, the influences of machining parameters on removal rate and surface roughness in mrp are studied

    5 、磁流變拋光（ mrf ）是超光滑光學表面的一種新型加工技術，本文從mrf的磁、力學性質出發，研究了磁流液的穩定性、流變效應、鏈化結構和連續介質模型；根據拋光區內剪應力、正壓力的分佈特徵，提出了mrf的定量加工模型；然後以平面工件的磁流變拋光為例，揭示了工藝參數對材料去除率和表面粗糙度的影響規律。
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