vertical circulation 中文意思是什麼

vertical circulation 解釋
垂直環量
  • vertical : adj 1 垂直的，直立的，豎立的，縱的（ opp horizontal ）。2 頂上的，頂點的，絕頂的。3 【解剖學】頭...
  • circulation : n. 1. 循環；運行。2. 傳播；環流（量），流通（量）。3. （雜志等的）發行（額），銷數，銷路。4. 通貨，貨幣；流通證券。5. 【航空】環量，環流。
  1. Second, we discuss the influence of environmental referance potential temperture and thermal wind on mesoscale symmetric instability. we find the expression of disturbance stream function and criterion of symmetric instability by analytical method and conclude that change caused by environmental referance potential temperture with height and thermal wind make critical richardson number and disturbance critical half - wave length of symmetric instability larger, that is to say, they benefit the occurance of symmetric instability. third, we study nonlinear perturbation analysis of mesoscale vertical circulation and evolution equation by means of f - plane. non - hydrostatic balance and filiter model

    第二，討論了環境位溫與熱成風因子對中尺度對稱不穩定的影響。運用解析的方法求出了擾動流函數的表達式和對稱不穩定的判據，發現環境參考位溫隨高度的變化與熱成風因子使得對稱不穩定臨界理查遜數及擾動的臨界半波長都變大，這有利於對稱不穩定的發生。第三，採用f平面、非靜力平衡、濾聲波模式，討論了中尺度垂直環流非線性攝動分析及演變方程。
  2. Based on the analysis mentioned above, a conceptual diagram explaining the physical process is put forward : stronger ( weaker ) convective activities in tropical areas stronger upward ( downward ) vertical anomaly stream in tropical areas more ( less ) moisture transports from " key regions " to shandong stronger ( weaker ) hadley and walker circulation stronger ( weaker ) east asian summer monsoon eap ( negative eap ) in 500hpa upward ( downward ) vertical anomaly stream rise in shandong subtropical high abnormally located northward ( southward ) more ( less ) rain in shandong province

    弱季風年與山東夏旱年則相反。通過分析山東夏季降水與東亞夏季風以及大氣環流異常的物理過程，得出了如下物理概念模型:熱帶印度洋以及南海-熱帶西太平洋地區對流加強（減弱）吟熱帶地區垂直上升（下沉）氣流增強崢熱帶印度洋和南海一西太平洋地區水汽輸送通量增加。
  3. The analysis of the large - scale synoptic situation shows that strong precipitation is closely related to the explosion of monsoon and the intensification of cross - equatorial flow which bring a lot of vapor and meet with cold masses at the eastern of northwest district on 8th, june causing extremely heavy rainfall ; that subtropical high - level jet at 200hpa, subtropical high at 500hpa and low - level jet at 850hpa are the weather backgrounds favorable to strong precipitation ; that the pattern of eastern highs and western lows and the establishment of a low - level jet and the coupling between upper - and low - level patterns that determine that the rain occurred in the east of the northwest china ( on average, this is the rainy season for the south of china, but not for the northwest china ) ; that water vapor comes from southerly and easterly flow which converge at the eastern of northwest district with convergence mainly in lower levels and pbl ; that the high value of the whole - level apparent heat source < q1 > is near the area of large rainfall in the direction of northeasterly - southwesterly agreeable to shear line very well and the condensation latent heat releasing is main heat source with vertical advection item playing key role in q1 and q2 ; that there is a vertical secondary circulation crossing low - lever jet whose ascending branch is at the area of large rainfall ; that the construction of convection instability and conditional symmetry instability results that there is not only deep thermal instability, but also moisture influx and triggering mechanism of thermal instability causing strong torrential rain

    作為對比，本文還對2002年6月24 - 25日發生在北京地區的強地形雨進行了分析，並討論陜南、北京地區兩地暴雨的異同點以及地形作用的共性和個性，為兩地暴雨預報提供有益的參考，得出了一些很有意義的結果： 1大尺度環流背景分析表明： （ 1 ） 「 02 . 6 」強降水與6月上旬越赤道氣流和季風爆發密切相關，攜帶大量水汽的偏南氣流與冷空氣於6月8日交匯在西北地區東部，導致了這次強降水的發生； （ 2 ） 200hpa的副熱帶西風急流、 500hpa副高以及850hpa的低空急流的配置非常有利於本文分析之陜西強降水的發展與維持。大尺度形勢分析表明，東高西低形勢場、低空急流的建立和高低空形勢的配置決定了這場降雨出現在西北地區東部。與暴雨區相聯系，存在一支橫越低空急流的經向垂直環流，暴雨區處于該垂直環流的上升支； （ 3 ）偏南和偏東氣流水汽通道在西北地區東部交匯，水汽的輻合積聚主要在對流層低層和行星邊界層內完成； （ 4 ）整層的視熱源< q _ 1 >高值區在暴雨區附近呈東北-西南向分佈，與切變線走向非常一致，降水產生的凝結潛熱釋放是強降水區大氣的主要熱源。
  4. The lg series pump is single - suction multi - stage segmental vertical centrifugal pump for use in handling water supply and drainage in high rising buildings, industrial, mining and municipal applications, make - up water in chemical plant, water circulation in low - pressure boiler

    本系列泵是立式、單吸、多級分段式離心泵，具有結構緊湊、噪音低、佔地面積小、重量輕等優點，主要用於高層建築的生活供水，工礦企業、市政工程給排水，化工流程補給水，以及低壓鍋爐循環用水等場合。
  5. The contrast analysis for the vertical distribution feature of the simulated physical quantities such as vorticity, divergence, vertical velocity. spiral degree etc suggests that there are a good disposal among the various physical quantities fields in the different stage during the period of sandstorm development, and reveals that the dynamic mechanism of the forming, developing, decreasing of the sandstorm weather and trigger and indication effects of the micro - mesoscale systems and secondary vertical circulation to the occurring and developing of sandstorm in northwest area

    對渦度、散度、垂直速度、螺旋度等物理量的水平和垂直分佈特徵進行對比分析，發現各物理量場在沙塵暴發展的不同時期有著很好的配置，揭示出西北地區沙塵暴天氣的形成、發展、消弱的物理機制和中小尺度系統、次級垂直環流對沙塵暴天氣發生發展的觸發和指示作用。沙塵暴區上空螺旋度垂直分佈為高層負值，低層正值，螺旋度大小的演變與沙塵暴的出現有一定的對應關系。
  6. The convergence of air at the lower levels and divergence aloft imply a vertical circulation which is schematically shown in the following cross - sectional diagram

    下面是熱帶氣旋的垂直環流示意圖，圖中可看到低層的空氣輻合及高層的空氣輻散。
  7. The machine can adopt positive and negative circulation and other deep drilling technique, adapts to various stratum, is the first selected equipment for foundation construction of river ' s bridge and dock, and also adapts to large diameter borehole construction such as tall building, coal mine vertical well and sewage well, it exerts great action many changjiang river large scale bridges foundation construction

    該機可採用正反循環等鉆進工藝施工，適合於各種地層，是江河橋梁、碼頭基礎施工的首選設備，也適用於高層建築、煤礦豎井和污水井等大口徑鉆孔施工，在多座長江大型橋梁基礎施工中發揮了巨大作用。
  8. By combining with the simulation result of the vertical circulation structure, we propose that the factors induced the distribution difference of calanus sinicus and chlorophyll - a concentration not only include the grazing activities, vertical circulation structure at the fronts also plays an important role. the circulation of bohai sea in spring is examined to provide a reliable physical environment for biological model

    首次抽出黃海海洋鋒區的垂向環流結構有利於中華哲水蚤在鋒區的聚集，葉綠素a濃度高值區偏離鋒區也與鋒區上升流結構密切相關，模型研究中首先對渤海環流的物理機制進行了研究。
  9. By analyzing the abundance distribution of the calanus sinicus at the fronts in the two surveys, we try to find the direct dominant physical processes. and on the basis of that, provide a simple coupled physical and biological model and apply it in the bohai sea. the position of the tidal fronts and vertical circulation structure near the fronts are examined using the blumberg & mellor 3d nonlinear numerical coastal circulation model incorporating with mellor & yamada level 2. 5 turbulent closure model

    論文基於目前國際上普遍使用的blumberg & melior三維非線性環流模型（ ecom ）並結合mellor & yamada的21 / 2階湍封閉模型，採用blumberg & mellor改進的半隱式數值差分格式，首先對黃海海洋鋒位置及其鋒區環流特徵、形成鋒的主要動力機制等進行了研究。
  10. With the wind, pressure and sea surface temperature ( sst ) data provided by ncep / ncar reanalysis project and excess length of day ( lod ) data provided by international earth rotation service ( iers ), atmospheric angular momentum ( aam ) and its horizontal and vertical transportation are computed and analyzed, which are in accordance with maintenance of the zonal circulation. and the anomalous aam is highly consistent with el nino events

    應用ncep / ncar40年再分析計劃提供的風場、氣壓場、海溫等資料以及國際地球自轉服務局（ iers ）提供的日長變化資料，計算大氣角動量及其水平、垂直輸送，分析其氣候及異常特徵，發現角動量及其輸送與緯向環流的維持相一致，角動量異常與厄爾尼諾事件緊密相關。
  11. Zlgd series vertical low rotation speed centrifugal pump is applicable for occasions with low requirements for environment noise, air - conditioning circulation, etc

    Zlgd系列立式低轉速離心泵，適用於環境噪聲要求很低的場合及空調循環等。
  12. During 1950 ~ 1976 / 1977, the walker circulation over the tropical pacific and the vertical zonal monsoon circulation over the tropical indian ocean coupled at the oceanic continent, the same period when el nino occurs, the anomaly of the west wind over the tropical pacific can correlate with the departure of east wind over the tropical indian ocean through the two coupled vertical zonal circulation. but after 1976 / 1977, the updraft of the walker circulation moved eastward. locating at the north of australia. therefore the two vertical zonal circulation could n ' t coupled, and the anomaly of west wind and the departure of east wind could n ' t geared. in the result. the signal of enso decreased in indian ocean after 1976 / 1977

    1951 1976 1977年，熱帶太平洋的walker環流和熱帶印度洋的緯向季風環流在海洋性大陸附近耦合，當elnino事件發生時，太平洋的西風異常可以通過這兩個緯向的垂直環流與印度洋的東風異常聯系起來，而1976 1977年以後，由於西太平洋walker環流上升支東移到澳大利亞北部，熱帶兩洋的緯向垂直環流無法耦合，熱帶太平洋elnino事件中的西風異常與熱帶印度洋的東風異常聯系減弱，所以1976 1977年以後， enso在熱帶印度洋的信號減弱了。
  13. The basic requirements include good cyclonic inflow i. e. for the northern hemisphere, inward spiralling in an anti - clockwise sense at the lower levels for the initial spin - up process, and good outflow channels at the upper levels for effective ventilation. the convergence of air at the lower levels and divergence aloft imply a vertical circulation which is schematically shown in the following cross - sectional diagram

    熱帶氣旋的誕生及發展的基本條件是：在大氣低層必須有充份的氣旋式氣流輻合（在北半球，沿反時針方向螺旋形地流入） ，在大氣高層要提供足夠的氣流外溢通道，這樣才可以建立有效的通風機制。
  14. The basic requirements include good cyclonic inflow ( i. e. for the northern hemisphere, inward spiralling in an anti - clockwise sense ) at the lower levels for the initial spin - up process, and good outflow channels at the upper levels for effective ventilation. the convergence of air at the lower levels and divergence aloft imply a vertical circulation which is schematically shown in the following cross - sectional diagram

    熱帶氣旋的誕生及發展的基本條件是：在大氣低層必須有充份的氣旋式氣流輻合（在北半球，沿反時針方向螺旋形地流入） ，在大氣高層要提供足夠的氣流外溢通道，這樣才可以建立有效的通風機制。
  15. Vertically, tidal mixing had a direct impact on the distributions of nutrients and phytoplankton. nutrients and phytoplankton were well mixed vertically by tidal mixing. the vertical circulation structure at the center of the yellow sea cold water mass is still not so clear

    心爪一j刁、流纖i構尚刁二卜分行x楚，夏平夕h …沖水廠卜心的上下流糾構及海汁仍千卜叫。
  16. In this paper, the noninterference movement condition of the cages of vertical circulation parking equipment is established, and the method for the chain transmission system design according to the condition is presented

    摘要建立了垂直循環式停車設備托架運動不干涉條件，提出了根據托架運動不干涉條件設計停車設備鏈傳動系統的方法。
  17. Whether in the aspect of total rain days or total rainfall amount in a year, ya ' an is always an extreme range, which has been called " ya - an - tian - lou " in chinese. the predicted average physical structures in the raining process are as follows : ( l ) positive vortex and convergent center in the lower and middle troposphere and negative vortex and divergent center in upper troposphere ; ( 2 ) the superposition of the low layer zonal - vertical circulation and the up layer zonal - vertical circulation forms a strong upward current

    從6種不同方案對暴雨過程預報的實驗看，不同的邊界層參數化方案對雨帶特徵的模擬都具有一定的能力，同時模式模擬的降水對參數化方案的選取是敏感的，不同的參數化方案模擬出的降水范圍和雨量分佈有所差異，主要表現在降雨量中心強度及雨區分佈上。
  18. The mesoscale model mm5 was successfully used to simulate the rainstorm caused by the weaken 9907 typhoon circulation in shandong province during 11 - 12 auguest 1999. based on the outputs of the model, the mesoscale vertical structure of regular physical variables was analyzed

    本文利用非靜力中尺度模式mm5對1999年8月11 12日由冷空氣侵入臺風低壓環流造成半島西部和魯東南特大暴雨過程成功地進行了數值模擬。
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