駐點流 的英文怎麼說

中文拼音 [zhùdiǎnliú]
駐點流 英文
stagnation flow
  • 駐 : 動詞1. （停留） stay; halt; stop 2. （住在執行職務的地方; 設在某地） be stationed; encamp
  • 點 : Ⅰ名詞1 （液體的小滴） drop （of liquid） 2 （細小的痕跡） spot; dot; speck 3 （漢字的筆畫「、」）...
  • 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...
  • 駐點 : arrest point
  1. Epidemical characteristics of peptic ulcer of military people living chongqing a rea

    駐重慶地區軍人消化性潰瘍的流行病學特點附6583例胃鏡分析
  2. These saddle points represent points of stagnation of the current flow.

    這些鞍點代表電流的駐點。
  3. The thermal visualizations of jet impingement cooling with single or double row holes inside semi - enclosed channel are measured by using infrared camera and then the impingement cooling heat transfer coefficients are deduced. the effects of flow and geometry parameters on convective heat coefficients are obtained. the results show that : for a single row normal impingement, the impingement cooling effectiveness is enhanced with the increase of impinging reynolds number or the decrease of hole space to diameter ratio, and the best effectiveness is achieved under the jet - to - surface spacing equals to 2 ; when the jet is oblique to the confined wall, the cooling effectiveness is weaken especially under the jet - to - surface spacing ratio is greater than 2 ; for double rows normal impingement cooling, the cooling effectiveness of rear row jet is weaker than the front row under lower impinging reynolds number or bigger jet - to - surface spacing

    對于單排垂直射流，沖擊冷卻效果隨射流雷諾數的增加、孔間距與直徑比的減小而得到提高，沖擊間距比為2時換熱效果最好;沖擊孔中心線向通道封閉一側傾斜后，射流沖擊冷卻的范圍變窄，當沖擊間距比大於2時駐點區的對流換熱能力明顯降低;對于雙排沖擊射流，孔排間距與直徑比的增加使沖擊冷卻范圍變大，但在兩排孔之間區域的對流換熱系數有所下降;在較小的沖擊射流雷諾數和較大的沖擊間距比下，後排射流的沖擊換熱效果要遜於前排射流。
  4. Micro - jets impingement cooling heat sink is used to cool the high power lda owing to the very thin hydrodynamic and thermal boundary layers in the impingement region when a jet impinges on a surface. reasonable array of jets can develop the uniform of temperature distribution on target very much

    微射流陣列冷卻熱沉，是利用射流沖擊在駐點區能產生很薄的邊界層來提高換熱效率的，合理的布置射流孔，可以極大的提高被冷卻表面溫度分佈的均勻性。
  5. For both newtonian flow and non - newtonian flow, the vortices are generated when the waviness of the bottom profile is beyond a critical number. by increasing the waviness, a second vortex can be generated. with the increasing of reynolds number, the symmetry of the streamlines at re = 0 is destroyed and the vortices are sloped and become larger

    當波形板的波動度超出臨界值，波形板壁面上的流動出現流線分離，流動中有渦生成;增大波動度，流動中出現第二個渦; re = 0 ，流線在流場中對稱分佈;雷諾數增大，流線駐點在水平方向出現位置偏移，渦的范圍增大;對于非牛頓流體，隨著剪切變稀指數的減小，渦的作用范圍減小。
  6. But i think it s very, very important that we do everything we can to encourage exchanges and americans living and working in china, and chinese living and working in america. our ambassador, sandy randt, who is with me today studied chinese as a young man, lived in hong kong for many years, of course, is serving now as ambassador to china. i ve got people working for me on my staff who spent years in china, growing up here, or have studied here, as well

    我覺得非常重要的一點是，我們要盡一切所能來鼓勵我們兩國人民之間的交流，不管是僑居中國的美國人還是僑居美國的中國人，我們的大使雷德先生今天也在這里，他年輕的時候學過中文，在香港居住過多年，現在是我們駐中國的全權特命大使，我自己手下也有一些人在中國度過多年的時間，或者在這里長大，或者在這里學過中文等等。
  7. Abstract : approximate methods for calculating aerodynamic heating rates on space shuttles are discussed. various methods are given for predicting the heating rate at axisymmetric stagnation points, general three dimensional stagnationpoints and the leading edge stagnation point of wings. numerous laminar and turbulent heating techniques for flat plates and cones are analyzed and compared. a brief review of some methods is presented to predict heating rate for winward centerline and lateral direction off the symmetry plane. the results show that the methods are simpler and can guarantee enought precision for predicting aerodynamic heating environment of space shuttles

    文摘:介紹了國內外預測航天飛機氣動加熱的工程計算方法.給出了軸對稱、非軸對稱和機翼前緣等各種外形駐點熱流密度的計算，分析和比較了平板、錐體的層流和湍流熱流密度計算的各種方法，概述了航天飛機迎風面中心線和離開中心線橫向熱流密度的計算.計算結果表明，本文方法用在航天飛機氣動熱環境初步設計中比較簡單並且有足夠精度
  8. In the thesis the low drag - low noise optimization of the vehicle main form design is realized, main accomplishments are as follows. researched the knowledge of drag and flow noise, the parameters of the boundary layer are calculated by the hess - smith method and boundary layer momentum integral method. the calculation of the length of transition zone and change in boundary layer displacement thickness between laminar and turbulent states in the transition is improved, then the drag coefficient and self - noise from the transition zone are calculated as the objective functions of the optimization

    主要研究內容和成果如下：對航行器繞流流場進行分析，深入研究了阻力和流噪聲產生機理，建立了阻力系數和自噪聲的評估數值計算模型；採用物面分佈源匯法和邊界層動量積分法對繞流流場的流體動力參數進行計算，改進了轉捩區長度和邊界層位移厚度的計算，應用於航行器頭部駐點自噪聲的計算；最後設計了阻力系數和自噪聲數值計算程序模塊。
  9. In rome, you can feel the uninterrupted flow of the ages from the classical era of the ancient romans to the contemporary life being lived in centuries - old settings. today, we go to vatican to visit st. peters square and st. peters basilica

    隨后前往橢圓形設計的古羅馬斗獸場，保存完好的君士坦丁大帝凱旋門，曾是羅馬居民生活中心的古羅馬?場廢墟，以及充滿浪漫憧憬的許願池等名勝古跡，每一個景點，都叫人喝采，流連駐足。
  10. We must put emphasis on the below ' s works : selection of supreme manager, prevent brain drain, solve the diffluence problem of redundant workers, build up new combination, keep the integration time in control, communication, education and train, personnel excitation, we must notice some problems in transnational m & a : section of manager who reside in foreign corporation, trans - cultural communication, effect of foreign human resource policy and trade union

    人力資源整合要按照目標、公平等原則，在獲得必要的財務支持的基礎上，重點做好以下方面工作：最高管理人員的選擇、防止人才流失、冗員的分流安置、人員的團隊組合、整合的時間性把握、溝通、培訓以及人員激勵。跨國購並中人力資源整合應注意以下幾個問題：駐外經理人員的選擇；跨文化的溝通；被購並企業所在國家的勞動人事政策和工會組織的影響。
  11. The main numerical method of this code is coming from scheme ( jameson, schimit and turkel ) : using cell - centered finite volume method as spatial discretization tools, and a system of ordinary differential equations for time variable is obtained, which is solved by utilizing five - step runge - kutta scheme as time marching method, introducing artificial dissipation to damp high frequency oscillations near the shock and stagnation point

    本論文採用歐拉方程作為控制方程，利用中心有限體積法進行空間離散，得到對時間變量的常微分方程組，採用龍格庫塔多步法進行時間積分，加入人工粘性以消除激波和駐點附近的壓力振蕩等方法來對naca0012翼型的實際流動進行并行數值模擬。
  12. The method of prediction the discharge coefficients of film cooling holes on the turbine blade suggested by d. a. rowbury et. al has been improved in this paper to fit the computations in the cases of low pressure ratios and the holes in leading edge region especially. the effects of external cross - flow, hole geometry and reynolds number in the hole were taken into account. an additive loss coefficient method is subsequently applied to the test data in order to assess the effect of the external cross - flow

    Rowbury等提出的流量系數工程演算法進行了改進，計算結果和實驗數據的比較表明改進后的新模型使低吹風比和前緣駐點附近流量系數的計算得到了明顯的改進，而在高吹風比下仍能保持與實驗數據相符，這種演算法有可能成為低壓比情況下型面氣膜冷卻的一種通用設計方法。
  13. For example, it has already allowed more journalists to be stationed in taiwan, will soon allow chinese actors to participate in taiwan filmmaking, and is evaluating other policy measures that will improve cultural and economic exchanges

    例如，許可更多的大陸記者來臺駐點采訪，即將允許大陸演員來臺拍片，並刻正評估其他可以促進文化經貿交流的政策措施。
  14. Thirdly, this dissertation briefly introduces the engineering estimation method of the aerodynamic heat and supplies the simplified formulas. not considering the rejection, the ablation and some other factors, the author calculates the stagnation heat flux and the non - stagnation field heat flux distribution of some fly situation as the example aerodynamic heat environment. finally, by using the ansys program, the thermal vibration characters of the plate and missile body structures with different materials is analyzed

    這一方法提高了熱振動的分析效率；第三，簡要的介紹了工程上計算氣動熟的估算方法及熱流密度計算的簡化公式，在不考慮燒蝕以及質量引射等影響下，本文計算了幾種飛行條件下駐點和非駐點區的熱流密度分佈，作為本論文算例的氣動加熱環境。
  15. Flow noise scaling at the stagnation point of an axisymmetric body

    回轉體駐點處的流噪聲相似律
  16. It is found that, the heat transfer coefficients in the area after at stagnation point is higher than that of common jetting although the heat transfer coefficients are smaller at stagnation point, and, comparing to common jetting, rotary jetting contributes to the even distribution of heat transfer coefficients near stagnation point

    結果表明，盡管旋轉射流的努謝爾特數在駐點附近低於普通射流的努謝爾特數，但在壁面射流區高於普通射流的努謝爾特數。與普通射流相比，旋轉射流導致駐點附近區域的換熱特性趨于均勻化。
  17. A series of new cleansing initiatives addressing district concerns has been implemented since november 2001, which includes provision of static street cleaners at busy spots for the instantaneous removal of litter, the removal of illegal bills or posters, and roving cleansing teams for clearing hygiene black spots

    由二零零一年十一月開始，本署針對地區的環境問題，推行多項嶄新的清潔措施，包括調派長駐街道清潔值勤員在繁忙地點即時清理街上垃圾清除非法張貼的招貼或海報，以及派遣流動潔凈隊清理?生黑點。
  18. A series of new cleansing initiatives addressing district concerns have been implemented since november 2001 which include provision of static cleaners at busy spots for the instantaneous removal of litter on streets, removal of illegal bills or posters, and roving cleansing teams for clearing hygiene blackspots

    由二一年十一月開始，本署針對地區的環境?生問題，推行多項新的清潔措施，包括調派長駐清潔值勤員在繁忙地點即時清掃街道上的垃圾清除非法張貼的招貼或海報，以及派遣流動潔凈隊清理?生黑點。
  19. A series of new cleansing initiatives addressing district concerns has been implemented since november 2001 which includes provision of static street cleaners at busy spots for the instantaneous removal of litter, the removal of illegal bills or posters, and roving cleansing teams for clearing hygiene black spots

    由二零零一年十一月開始，本署針對地區的環境?生問題，推行多項新的清潔措施，包括調派長駐街道清潔值勤員在繁忙地點，即時清理街上的垃圾清除非法張貼的招貼或海報，以及派遣流動潔凈隊清理?生黑點。
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