最小風時 的英文怎麼說

中文拼音 [zuìxiǎofēngshí]
最小風時 英文
minimum duration
  • 最 : 副詞（表示某種屬性超過所有同類的人或事物） most; best; worst; first; very; least; above all; -est
  • 小 : Ⅰ形容詞1 （體積、面積、數量、強度等不大） small; little; petty; minor 2 （年紀小的; 年幼的） youn...
  • 風 : Ⅰ名詞1 （空氣流動） wind 2 （風氣; 風俗） practice; atmosphere; custom 3 （景象） scene; view 4 ...
  • 時 : shí］Ⅰ名1 （比較長的一段時間）time; times; days:當時at that time; in those days; 古時 ancient tim...
  1. With experiments and theoretical analyzing, we find when the heat discharge is smaller than the entrainment limited, what influences the ability of heat - transmitting of work quality is the quantity of injection and dry limit fluid inventory, the optimum quantity of injection of the three working fluid is 8 ~ 14g ; and the delivering factor that transmission coefficient is determined by capillary limit, not the heat transmission ability of the thermal syphon. therefore, among the three working fluid, acetone is the best. low wind - speed has the obvious function in heat transmission of the thermal syphon

    本文通過實驗研究和理論分析，認為在熱流量小於攜帶極限時，影響工質傳熱能力的是cpu重力熱管的充液量和其乾涸極限，此次所實驗的三種工質，最佳充液量應當在8g ~ 14g ；傳輸因素主要決定普通熱管的毛細極限，而不是重力熱管傳熱能力的決定因素；三種工質中的最佳工質是丙酮；小風速時風速的變化對cpu重力熱管的傳熱有明顯的作用，但在風速大於1m / s以後，風速增加對于cpu重力熱管的傳熱能力的增加效果減緩。
  2. Afterthe 24 / 7 era with the belt, which saw hundreds of title changes withinmere months, rob van dam entered the company, and after a fantasticmatch at invasion in 2001, the tile was back on solid ground, withgenuinely good matches showcasing off the no - limits hardcore style, with minimal weapon usage, and creative use of both weapons and thering area

    經過24 / 7時代，隨著帶中，出現了數以百計的所有權變動短短幾個月，搶劫麵包車大壩進入公司，而經過一段奇妙比賽入侵2001年瓷磚回到腳踏實地，真正好的比賽中展示過的無界限死硬作風，最小武器用法，並創造性地使用武器和環區
  3. Since the suggested method makes a significant improvement in wind speed, it is more suitable for wind field estimation over complex terrain than other methods which only concerns the effect of distance. then we calculate the wind change with evaluation, last we can conclude the wind abase the hilly terrain, we find the wind in westward and center plain is much smaller than other area. while the wind in northward hilly area is much bigger with the hilly arising. the wind of chongqing is the biggest period in spring ( april ), the smallest period in winter ( january ), the wind in summer ( july ) is bigger than its in autumn ( october )

    本文利用重慶及其周邊地區的常規氣象站的1951 ? 1980年30年的風速平均資料，針對復雜地形風速診斷，以地理信息系統為數據處理平臺，根據重慶1 ： 25萬dem數據，來獲得重慶市實際復雜地形的高程，提出了一種適合於起伏地形的權重內插方法，通過引入一個表示地形起伏變化程度的因子，構造了一種新的權重函數，來處理復雜地形上的風速，通過與只考慮距因素同反平內插方法比較發現，本方法更適合在起伏地形條件下使用；然後根據經驗公式在地形上進行計算，得出重慶地區起伏地形下的風速分佈；得出重慶市的西部、中部平原地帶風速較小，而北部山區隨海拔高度升高風速也較大；重慶市風速最大時期為四月份，冬季一月份最小，夏季（七月份）大於秋季（十月份） 。
  4. One of our goals in designing the supergrid has been to ensure that it can accept inputs from a wide variety of generators, from the smallest rooftop solar panel and farmyard wind turbine to the largest assemblage of nuclear reactors

    我們設計超級電力網時的目標之一，是讓它能夠接受各種發電裝置的輸出，從最小的屋頂太陽能板和農場風力發電機，一直到最大的核子反應爐等。
  5. A modified svm model, which can predict peak recognition theory, was proposed in this paper. this model can increase the weight of peak error in the loss function of structural risk minimization, thus improve prediction accuracy of hourly water demand peak

    本文提出一種能夠進行峰值識別的改進svm演算法，該演算法在結構風險最小化準則的目標函數中加大峰值誤差的權重，從而提高時用水負荷峰值的預測精度。
  6. First, a new methodological framework is developed for investigating the optimal strategies of maintenance scheduling for generating units with risk well taken into account, based on the widely employed power pool mode and the uniform clearing price. two scenarios are examined in detail, i. e., for the two cases that the generation company studied is / is not a price taker in the electricity market operation. based on the electricity market clearing prices estimated, a new methodological framework is presented, mathematical models formulated and a solving method developed

    以國內外廣為採用的聯營體模式、統一市場清算價結算的現貨電力市場為背景，在假設市場電價可以預測並能夠描述為某種概率分佈的前提下，採用方差或標準差來描述和度量風險；建立了相應的優化模型，為發電公司在制定發電機組的檢修計劃時適當兼顧利潤損失的期望值最小和風險最小這兩個目標提供了新的解決途徑。
  7. Secondly, to achieve the independent regulation of active and reactive power output from the generator side which is designed for the purpose of tracing the maximum wind - energy capturing. the paper has analyzed the mathematic model of the ac excited doubly - fed machine and the stator field orientation control strategy of the motor as vscf wind power generator. thirdly, it has put forward and designed the dual pwm converter with the capacity of energy flowing bidirectional aimed at the demand of rotor energy bidirectional flow. the author constructed reliable and integrated experimental system and did a series of experimental study including no - load, cutting - in network and power generation at, below and above the synchronous speed

    論文首先分析了風機運行特性及其最佳風能利用原理，通過模擬及實驗驗證了採用直流電機的輸出特性模擬風力機的最大輸出功率曲線的可行性，並給出了模擬系統的硬體結構；然後為了實現交流勵磁發電機有功、無功功率獨立調節機理，分析了交流勵磁雙饋發電機的數學模型和在追蹤最大風能捕獲變速恆頻風力發電時必需的定子磁鏈定向矢量控制策略；針對雙饋發電機轉子能量雙向流動的要求，提出並設計了具有能量雙向流動能力的雙pwm交流勵磁用變頻器；最後為實現從理論到實踐的全面研究，研製出了一套小功率完整的雙pwm變頻器交流勵磁的雙饋風力發電機實驗系統，進行了空載、並網、同步速及上、下的發電運行等一系列的運行實驗；所完成的模擬和實驗研究均驗證了理論、模型和控制策略的正確性、可行性。
  8. Following, making development study from the three directions : the first one is how to reduce calculation when to use markowitz model. this text has improved the efficient frontier of markowitz model utilizing free risk assets, and reduced calculation about revenue rates " co - variance matrix utilizing single or multiple factors, and so on. the second one is to add thinking factors about, such as transaction fee, fund limitation, lowest transaction unit ' s limitation, risk measures and exchange rate risk of international portfolio securities, so as to make markowitz model closer to our country ' s practice

    接著，分三今方向對markowitz模型進行了拓展研究：第一個方向是運用markowitz模型時如何減少計算量，本文利用無風險資產來改進markowitz模型的有效邊界，利用單因子或多因子模型來減少收益率協方差的計算量等等；第二個方向是增加考慮因素，諸如交易費用、資金限制、最小交易單位限制，風險測度和國際組合證券的匯率風險，使markowitz模型更貼近我國的實際；第三個方向是對markowitz模型進行動態拓展研究，提出了將證券收益率看成是隨機序列時的投資決策模型，深入研究了m ? v有效邊界隨資產品種數增加而發生的漂移，並用解析方法和幾何圖形描述了漂移的軌跡和方向。
  9. For vehicles in crosswinds, with the increase of crosswind angle, static pressure and side force of the vehicle windward increase and reach maximums at crosswind of 90 degree, and then decrease when the angle of crosswind continues increasing

    在側風影響方面，隨著側風角度的增大，車輛迎風面的靜壓、側向力先增大后減小，在車輛受到90o側風時最大。
  10. The most intense tropical cyclone in 2004 was chaba ( 0416 ). chaba had a maximum wind speed of about 220 kmh and a minimum sea - level pressure about 910 hpa

    二零零四年風力最強的熱帶氣旋是暹芭（ 0416 ） ，最高風速估計約為每小時220公里，而最低中心氣壓則約為910百帕斯卡。
  11. Taking a position in a futures market opposite to a position held in the cash market to minimize the risk of finanical loss from an adverse price change ; a purchase or sale of futures as a temporary substitute for a cash transaction that will occur later

    在期貨市場上建立一個與現貨市場交易方向相反的頭寸，以使不利的價格波動所產生的金融風險損失最小化；在期貨市場上進行買賣以暫時取代將來要進行的現貨交易。
  12. The research results show that the counter - flow condensers have a better performance than that of other arrangements in single - circuit condensers, and that branch flow should be adopted in multi - rows condensers to decrease the pressure drop and increase the heat transfer capacity, and that the influence of gravity force can not be ignored, and that there must be an optimum refrigerant mass flow which can make the condenser perform best when the air velocity is constant while there must be an optimum air flow which can make the condenser perform best when the refrigerant mass flow is constant

    研究結果表明，單迴路冷凝器中，逆流布置換熱效果最好，叉流其次，順流最差；多排管冷凝器應盡可能採用分流方式，以減小壓降，增強換熱；布置冷凝器流程時，重力的影響不可忽略；當風量不變時，必然存在一最佳製冷劑流量使冷凝器性能達到最佳；當製冷劑流量保持不變時，也相應存在一個最佳風量使冷凝器性能最佳。
  13. The most intense tropical cyclone in 2002 was fengseng ( 0209 ). fengseng had a maximum wind speed of about 205 kmh and a minimum sea - level pressure about 925 hpa

    二零零二年風力最強的熱帶氣旋是風神（ 0209 ） ，最高風速估計約為每小時205公里，而最低中心氣壓則約為925百帕斯卡。
  14. The distance between supply and exhaust air outlets is so small as to form strong blow and exhaust airflow, so the effect of the buoyant on airflow can be eliminated when supplying hot air in winter, and nearby working environment can be from pollution due to the smaller controlled area, so that an optimal environment effect can be obtained

    因送排風口距離小可以形成強勁的吹、吸氣流，能克服冬季送熱風時浮力對氣流的影響，同時由於控制區域小，不污染附近的作業環境，因此可取得漆霧控制的最佳效果。
  15. Upon reaching grenada, ivan intensified into a category 4 storm, with maximum sustained winds of 150 mph 241 kph

    伊凡直撲而來后，即增強為四級暴風，最大風速達每小時150英里相當于每小時241公里。
  16. Michelle minelli, a forecaster with the national weather service in miami, said the storm was expected to get stronger as it enteredswarmerworm waters of the gulf of mexico

    天氣預報說周一早上風暴就已經是一個四級颶風，最大風速每小時240公里，降雨量有可能高達50厘米。
  17. For shutters, the results show : 1 ) according to the formula p =, the theoretical value of is calculated by the effective velocity of the flow, and its engineering value is calculated by the arriving velocity of the flow, the relationship between the theoretical value of and its engineering value is 2 ) the smaller value of declining angle will result in the smaller pressure loss and smaller outlet velocities. as a result, the declining angle of 30 擄 or less is recommended in some places which need small wind velocity, such as broadcasting studio and library, and the declining angle of 45 擄 or less is recommended in places which need big wind velocity, such as cinema and office ; 3 ) the larger value of ratio between the wide of the shutter b and the space between two boards h ( b / h ) will result in the larger pressure loss and smaller outlet velocities. the range of b / h from 0. 8 to 2. 0 and the optimum value 1. 2 is recommended ; 4 ) the range of b from 10 mm to 50 nun and the optimum value 40 mm is recommended ; 5 ) the proper thickness of the boards 8 of the shutters is 1. 5 mm ; 6 ) cuneiform boards should replace the rectangle inlet boards of the shutters in order to obtain better ventilation

    數值模擬採用fluent軟體，計算結果用excel進行處理，通過對大量數值工況進行數值模擬計算，結果表明：對于單側百葉風口，計算表明： 1 ）對于公式p = （ ~ 2 ） 2 ，的理論計算值中定義為流體流經百葉風口內部時的速度，即有效速度，而工程上常使用流體的來流速度來計算，計算表明，的理論計算值與工程應用值的關系為（ _ （理論） ） （ _ （工程） ） = 0 . 813 ； 2 ）當來流速度一定時，擋板傾斜角度越小，壓力損失越小、出口速度越小；因此在要求進口風速比較小的場所，如播音室、圖書館等，宜採用擋板角度30的百葉風口；在要求進口風速比較大的場所，如電影院、辦公室等，百葉擋板的角度應選45 ； 3 ）當來流速度一定時，百葉擋板的擋板寬度b與擋板間距h的比值b h越大，壓力損失越大，出口速度越小，計算表明，鑒于壓力損失、出口風速、板間形成渦流區的大小，百葉擋板的b h值取0 . 8到2 . 0之間， b h = 1 . 2為最佳值； 4 ）當來流速度一定時，在計算的條件下，當百葉擋板寬度b = 40mm時，百葉擋板的阻力系數最小，考慮到渦流區等的影響，建議選用10mm b 50mm的百葉擋板；西安建築科技大學碩士學位論文5 ）百葉擋板的厚度取為1 . sinln為好; 6 ）百葉擋板的入口側可選用具有傾斜度的楔形擋板來代替矩形擋板，利用其較好的導流作用，可得到更好的出流效果。
  18. Forecasters say the storm had a maximum wind eed of 216 kilometers an hour before coming ashore

    氣象部門說，登陸前的最大風力達每小時216公里。
  19. On every confidence level, we use the degree of departure from central point as the measure of risk

    當預期收益率給定時，證明最小風險選擇組合的存在性。
  20. After analysising the five factors ( schedule, quality, investment, claim, risk ) which influence the limit point, this paper presents that the clients should decide the time for the construction in accordance with their own characterististics and utilizing benefits, and decide the project quality according to the sum of purchasing costs ( the price of contracts ) and the utilizing costs ( the costs to run and maintain ), and make it most possible to use supervisim optimal design and construction and to reduce claim and risk, which gives the clients a satisfying project with minimal investmentat the same time, this article tells the contractors how to optimize and make decision to minimize the costs in practice on the basis of meeting the requirment of the clients

    在分析了影響極值點的進度、質量、投資、索賠和風險五大因素之後，提出了業主應結合自身的特點，根據工程使用效益來決定工期，根據購置成本（即合同價格）和使用成本（即運行費和維護費）之和來決定工程質量水平，並盡可能通過監理來優化設計、優化施工，減少索賠和風險，使業主最終既能得到滿意的工程，又能使總資金投入最小。同時，也指出承包商應如何在滿足業主要求的前提下，進行優化和決策，使實際發生的成本最小。
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