正環流 的英文怎麼說

中文拼音 [zhēnghuánliú]
正環流 英文
direct circulation
  • 正 : 正名詞（正月） the first month of the lunar year; the first moon
  • 環 : Ⅰ名詞1 （環子） ring; hoop 2 （環節） link 3 （姓氏） a surname Ⅱ動詞（圍繞） surround; encircle;...
  • 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...
  • 環流 : [氣象學] circulation; circulating current; circumferential motion; circular current; ring current...
  1. 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。
  2. On the surface of msta, there exists true dipole mode in the indian ocean, that ' s to say that if the temperature anomaly in the western indian ocean is positive, it is much likely that there is negative anomaly in the eastern indian ocean. dipole mode also exists in the pacific as that in the indian ocean. by virtue of the walker circulation and the similar circulation above the indian ocean, it is showed that the air - sea interaction events in the tropical pacific and the indian ocean develop with each other at the same time

    由於在次表層海溫距平極值面上，熱帶西、東印度洋的海溫距平呈真正意義的偶極子模態，即當西印度洋海溫距平為正（負）時，東印度洋海溫距平為負（正） ，偶極子模態的海溫距平分佈在熱帶太平洋同樣存在，兩大洋海溫距平的偶極子模態間有密切的聯系，結合walker環流和印度洋上空的類似walker環流，進而指出熱帶印度洋和太平洋海氣相互作用事件是協調發展的。
  3. The vorticities of cyclonic and anticyclonic circulations take on positive and negative values respectively

    氣旋和反氣旋環流的渦度分別會取正值和負值。
  4. Bed temperature and mainstream pressure are important parameter of circulating fluidized bed boiler ( cfbb ) combustion control system. to maintain them normal is key to the stable and economic operation of cfbb

    床溫和主汽壓是循環流化床鍋爐燃燒控制系統中的兩個重要參數，維持正常的床溫和主汽壓是循環流化床鍋爐穩定、經濟運行的關鍵。
  5. The circulation of positive pna index pattern is prominent in the case of persistent forcing of negative ssta in west wind drift region or positive ssta in tropical eastern pacific, which is the typical ssta pattern during el nino peak - mature phase

    西風漂流區持續負ssta時或者熱帶中東太平洋持續正ssta時，阿留申低壓均有所加強，正pna指數型的大氣環流特徵顯著。而當相反符號的ssta持續作用時，大氣中阿留申低壓減弱，對應pna指數為負。
  6. The steady - state errors of current closed loop system with pi current regulator in stationary and synchronous frames are compared using complex vectors. also, the corrector of rotor displacement control is studied by the root locus method

    應用復合矢量概念，對比了靜止坐標系和同步旋轉坐標系pi電流調節器組成電流閉環系統的穩態誤差，並用根軌跡法對轉子位移控制系統的校正環節進行了研究。
  7. On base of results above, composite model of ssta in pacific and circulation anomaly are constructed for analysis their evolution. during mature phase of el nino usually in winter, positive ssta dominates in tropical eastern ocean and negative ssta dominates in west wind drift district in mid - latitude ocean, correspondingly the pna index of 500 hpa geopotential height is positive which means the aleutian low gets strong, and the situation is somewhat inversely during la nina phase of ssta

    合成位相反映了太平洋ssta演變特徵，以及相對應的大氣環流異常特徵：當西風漂流區處于暖態而熱帶中東太平洋海溫偏低時，合成大氣模型當中阿留申低壓減弱， 500hpapna指數為負異常；當西風漂流區處于冷態，熱帶中東太平洋處于暖態（ elnino峰值?成熟期ssta典型分佈） ，合成大氣模型中阿留申低壓加強， 500hpapna指數為正異常。
  8. 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。
  9. Because the system error is ineluctable for mode, it is necessary to correct the simulation fielde effectively. in this paper, based on the idea of combined eof correction, the interannual simulation of sea surface wind stress anomalies of the tropical pacific ocean by lap two - level atmosphereic model have been corrected, result of corrected erperiment shows that the corrected field is more similar to the observation field, especially on the distribution of the space. three prediction experiments also shew that correcting scheme of combined eof can improve the interannual prediction veracity of model

    在本文中，基於「聯合自然正交展開誤差訂正」的思想，將中科院大氣物理研究所兩層大氣環流模式輸出的熱帶太平洋海表風應力異常的跨年度模擬場進行訂正，訂正試驗的分析結果表明，訂正後的熱帶太平洋海表風應力距平場與相應觀測場年際變率分量的相似程度遠遠好於模式模擬的結果，尤其是在空間分佈方面的改善非常顯著；三組跨年度訂正檢驗結果也表明，訂正後的跨年度預測結果明顯好於模式的預測結果。
  10. The main circuit is consisted of 18 thyristors circuit and protection circuit. with the help of control subsystem, it can get the output of low frequency voltage ( current ) with the shape of sine wave ; the core of the control subsystem is the cpu of 87c196kc, and the synchronization circuit, the pulse - widen circuit, and the power - enlarged circuit form the accessorial subsystem of the control system. it possesses all the functions of digital triggering, digital tuning, analog / digital conversion ; the input transfer can isolate the input and output ; and the circumfluence reactor can reduce the circumfluence

    主迴路採用由18個晶閘管組成的三相零式電路，並輔以晶閘管的保護電路，通過控制可以得到低頻正弦波的電壓（電流）輸出；控制迴路主要以87c196kccpu為核心，其外圍電路包括同步電路，脈沖拓寬電路，功率放大驅動電路等，完成了數字觸發、數字調節、模數轉換等功能；進線電源變壓器具有變壓和隔離作用；環流電抗器則實現了有效抑制主迴路瞬時脈動環流的功能。
  11. ( 4 ) in summer, tropic west pacific ssta decadal change infect precipitation decadal change in south and north of changjiang river maybe by : positive ssta in tropic west pacific weaken the summer monsoon circulation, lead more precipitation in south of changjiang river and less precipitation in north of it, vice versa ; middle north pacific ssta decadal change infect precipitation decadal change in mid - down valley of changjiang river maybe by : when ssta is negative in middle north pacific, the height field in tropic rises obviously, the subtropical high strengthens and extends westward, the northern limit retreats southward, leads upper trough retreats northward and move eastward, meiyu front moves northward, then leads more precipitation in mid - down valley of changjiang river, vice versa ; middle northwest pacific - low latitude mid - east pacific infects precipitation in north china possibly by change the activity of northeast china cyclone

    （ 4 ）熱帶西太平洋ssta年代際變化影響夏季中國長江南北降水年代際變化的可能機制是熱帶西太平洋海表溫度正（負）異常減弱（加強）東亞夏季風環流，從而使江南降水增加（減少） ，江北降水減少（增加） ；夏季中部北太平洋ssta年代際變化影響中國長江中下游地區夏季降水年代際變化的可能機制是中部北太平洋海表溫度負異常，將導致熱帶地區高度場普遍增高，副高加強西伸，副高北界南退，致使高空槽北縮東移，梅雨鋒西移北進，中國長江游中游、中卜游降水增多，反之亦反；夏季中高緯西北太平洋一低緯中東太平洋反向距平分佈結構影響中國東北降水的可能機制是低緯中東太平洋海表溫為負異常。
  12. By analyzing the realization of range migration, we conclude that the pipeline structure is effective to implement azimuth processing

    通過分析距離遷移校正環節的實現過程，提出用流水線結構完成方位處理並且在并行處理平臺上實現。
  13. Its interannual variation ' s main period is about 4 ~ 5a and the 7 ~ 8a ' s period exist too ; the interdecadal variation ' s main period of the australian high is about 15a. the interannual variation of australian high ( aah ) has correct correlation with antarctic oscillation and enso, and the enso ' s 4a period has the most important influence on the aah. ( 2 ) when the ah becomes stronger, the members of the whole aamcs are stronger following it. that is to say, in the years that the ah is stronger ( compared to the weak years of ah ) and on the horizontal circulation, the members of aamcs, including the ah, the cross - equator flow ( cef ) between 100 and 160 e, the south china sea south - west monsoom ( ssm ), the south sea monsoon rough, the tropical easily flow, subtropical high ( sh ), the mei - yu front, the mid - latitude effect, become stronger, and their positions are more southward ; in the meridional - right circulation, there are five circulations including classic monsoon meridional - cirle circulation and hadley circulation that become stronger in the strong years of ah than in the weak years of ah

    本文採用ncep ncar再分析月平均的全球海平面氣壓場、高度場、海表溫度場、高雲量和cmap全球降水資料，以及中國160站逐月降水資料，分析了1948 2002年期間澳大利亞高壓（以下簡稱澳高）的年際和年代際變化以及澳高年際變化對亞澳季風環流系統的影響，結果顯示： （ 1 ）澳高存在明顯的年際和年代際變化，澳高年際變化以4 5年的周期變化為主，同時兼有7 8年左右的周期，而澳高的年代際變化則以15年左右的周期變化為主：澳高年際變化同時與南極濤動和enso有正相關，並且enso的4年左右的周期變化對澳高年際變化影響最大。
  14. 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。
  15. Relaxation factors are adopted. a program is produced to simulate swirling air flow in a horizontal straight pipe and compare with experiment data. the simulation prove that the modified k - model can predict the core, annular and wall regions near entrance and axial velocity far from entrance, but it ca n ' t predict tangential velocity well in weak swirling area far from entrance

    編程計算水平圓管內螺旋氣流的流動參數並與實驗數據對比，結果表明修正-湍流模型在近入口處基本上能預測出中心區、環形區和近壁區的流動特性，在遠離入口弱旋流區域對軸向速度的預測符合實際情況，但是出現對周向速度修正過大的現象。
  16. The more positive the vorticity, the stronger the cyclonic flow is

    渦度正值越高的地方，表示氣旋環流越強。
  17. This paper investigates the two interrelated problems from the following two parts : first part, a polar coordinate quasi - geostrophic barotropic model, a cartesian coordinate quasi - geostrophic barotropic model, a quasi - geostrophic baroclinic model, and a quasi - geostrophic barotropic vorticity model under the condition of non - stationary typhoon circulation are designed within the framework of advection dynamics, and systematically dynamic studies on effects of different physical processes on the intensity of typhoons are conducted

    研究內容分兩個部分。第一部分，在平流動力學框架內設計了一個極坐標準地轉正壓模式、一個直角坐標中準地轉正壓模式、一個準地轉斜壓模式、以及一個非定常臺風環流條件下準地轉正壓渦度模式，對引起臺風強度變化的不同物理過程進行了較系統的動力學研究。
  18. The analysis for the evolution of the upper westerly field, north - south wind field show that the upper jet stream is a good indication to sandstorm - occurring areas, the strong sandstorm appears at the right side of the entry domain of the jet stream and the ascension domain of secondary circulation

    對高空東西風場、南北風場的演變進行分析，發現高空急流對沙塵暴發生區有很好的指示作用，強沙塵暴位於200hpa高空急流入口區右側、 500hpa正渦度中心下風方和次級反環流的上升區域內。
  19. With 1958 ~ 1997 ncep / ncar reanalysis data and 1961 ~ 1995 summer ( jja ) rainfall and temperature records of 160 stations in china, a new east asian subtropical summer monsoon circulation index is defined, in which the barotropic and baroclinic components of the circulation are included

    摘要採用大氣環流正、斜壓分解方法，從東亞副熱帶夏季風為正、斜壓混合型季風觀點出發，定義並計算了1958 - 1997年東亞副熱帶夏季風環流指數。
  20. Summer precipitation in northeast china ranging from 1960a to 2000a and ncep reanalysis data is applied to study the temporal and spatial features of summer rainfall and extreme precipitation in northeast china. the results show : 1 summer rainfall in northeast china exhibits upward trend with the cycle variation of 14 years and 2 to 4 years. two abrupt changes occurs in summer rainfall with its happening time on 1964 and 1988 / 89

    利用東北地區99個測站的1960 ? 2000年夏季逐日降水資料，以及ncep再分析資料，採用旋轉經驗正交函數、 morlet小波分析、合成分析等方法分析了東北地區夏季降水的演變特徵和降水異常的環流背景，得出主要結論如下： 1東北地區夏季降水存在著減少趨勢，並且有14年和2 4年的周期存在，降水發生過兩次突變現象，分別發生在1964年和1984 85年之間。
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