峰值區 的英文怎麼說

中文拼音 [fēngzhí]
峰值區 英文
plvi
  • : Ⅰ名詞1. (山的突出的尖頂) peak; summit 2. (形狀像山峰的事物) peak-like thing Ⅱ量詞(用於駱駝)
  • : 區名詞(姓氏) a surname
  1. On the basis of that, numerical simulations have been carried out on full - scale cube model with three types of parapets. the caparison of with and without parapets shows that three types of parapets can significantly reduce high negative suction peaks on zones susceptible to wind pressure. formulas have been proposed about the height of those parapets

    在此基礎上對方塊模型屋面分別設置3種女兒墻進行了數模擬,與未設置女兒墻的模擬結果進行了比較分析,結果表明上述女兒墻都能較明顯地降低屋面風壓敏感的負壓,並給出了相應的女兒墻高度限公式。
  2. Finally, with caparisons of that three parapets properties cantilevered parapets has been adopt to the steel structure of light - weight buildings with gabled frames, numerical simulations have been carried out with that buildings, results of simulations show that device can also significantly reduce the area - averaged coefficient of wind pressure and high negative suction peaks on zones susceptible to wind pressure. formula has been proposed about the height of that parapet

    最後通過三種女兒墻的性能比較確定對門式剛架設置懸挑女兒墻進行數模擬,結果同樣表明懸挑女兒墻能明顯地降低門式剛架屋面風荷載敏感的負壓及屋面風荷載體型系數,並給出了女兒墻高度限公式。
  3. Precipitating process in this area could be divided into four types, namely : even type, gradually decreasing type, eruptive type and peak type. at the same time, the different raining type produced different sediment - transporting process

    的降雨類型主要有均勻型、遞降型、突發型、型等四種,不同的降雨類型存在不同的產流產沙方式。
  4. Firstly, evidence from depositional pattern suggests that the hsl has experienced an expansion - contraction circle since the late glacial epoch. the expansion and movement of the hsl or desert in early stage were clearly marked by the presence of paleo - aeoline sands. the occurrence of paleosoal characterized the stabilization and contraction of the hsl and also indicated the activity of pedogenesis on the paleo - aeilian sands

    通過系列氣候代用指標的分析,首次發現該地粒度、磁化率指標在兩個大的之間有多個小的谷出現,表明了在大的氣候變化階段次一級的暖濕?乾冷氣候波動,的進一步做年齡的小尺度高解析度研究。
  5. In order to improve the efficiency of classification based on feature matching, the method of azimuth estimation from sar image is studied. a method of target ' s azimuth estimation from sar image using peak featur e based on linear regression is proposed, besides goodish estimation accuracy and high computation efficiency, it can also provide the confidence interval of the estimation, which can meet the need of model - based sar atr system that uses feature very well

    為了提高基於特徵匹配的saratr系統的分類效率,論文進一步研究了sar圖像目標方位角估計方法,提出了一種利用特徵基於線性回歸的sar目標方位角估計方法,該方法除了具有計算速度快、估計精度較高的特點之外,還能在估計方位角的同時,給出該估計的置信間,從而能更好地滿足利用特徵基於模型saratr系統的需要。
  6. The welding technology of francis turbine runners is optimized from the view of subsection welding and local heating by numerical simulation. the result shows that welding residual tensile stress appears in the weld and its area nearby, and peak stress appears in the dangerous area of blades after practising quondam welding technology ; welding residual tensile peak stress in the dangerous area of blades can be decreased by welding both ends earlier and then welding middle section later during subsection welding, and decreasing effect on welding residual stress of the subsection welding is related to the weld length of blade outlets and welding direction of each subsection ; decreasing effect on residual stress of the local heating is direct proportional to heating time, heating temperature, heating area, and inversely proportional to cooling area, and welding residual tensile peak stress in the dangerous area is decreasing trend earlier, and then increasing trend later with heated location increased

    本文利用數模擬手段對轉輪的焊接工藝從分段焊和局部加熱兩個方面進行了優化,結果表明:採用普通工藝焊接時,葉片焊后殘余拉應力出現在焊縫及其附近域,並且在葉片出水邊的熔合線附近(危險域)出現了;在採用優化的分段焊時,先焊兩端后焊中間的方法可以降低葉片危險域的焊接殘余拉應力,降低效果與葉片出水邊焊段長度、焊縫各段的焊接方向有關;局部加熱法降低轉輪危險域殘余應力的效果主要與加熱時間、加熱溫度以及加熱面積成正比,與冷卻面積成反比,並且危險域的殘余應力隨加熱域的增大呈先降低后升高的趨勢。
  7. The reason to cause this phenomenon is due to the change of electric field in the blue oled to induce the probality of the carrier shifted and the hole - electron recombination zone changed, which was a possible alternative to achieve color display. 3 ) device with the structure of ito / npb / adn : balq3 / alq3 / mg : ag was fabricated. when the balq3 dopant concentration was about 25 mol %, a high performance devcie with luminous efficiency of 1. 0 lm / w, the peak of emission spectrum at 440 nm, the cie coordinate at ( 0. 18, 0. 15 ), and half lifetime of unencapsulated device about 950 hrs was achieved

    導致本現象的原因是由於各有機層電場強度的變化影響了空穴和電子的隧穿幾率,從而導致載流子的復合域發生改變而發出不同顏色的光; 3 )制備了結構為ito / npb / adn : balq3 / alq3 / mg : ag的藍光oled ,空穴阻擋材料balq3的摻入顯著影響了oled的光電性能,當balq3的摻雜濃度為25mol %時, oled的發光效率為1 . 0lm / w ,發光光譜的為440nm ,色純度為( 0 . 18 , 0 . 15 ) ,未封裝器件的半衰期達到了950小時; 4 )在藍光材料adn中摻雜npb 、 balq3和tbp三種材料時,不僅改善了器件的發光亮度和色純度,而且提高了器件的發光效率和壽命。
  8. Fictious simulation of high - speed roll casting has been carried out on the basis of the fact. the results showed that roll casting speed increase with the decrease of the thickness of the strip, and the peak value of rolling pressure decrease with the increase of roll casting speed and thickness of strip or the increase of roll casting zone. the designed parameters of mechanical capabilities of the roll caster should be raised when rolling pressure increase with roller diameter increase

    研究結果表明,減薄鑄軋板坯厚度可提高鑄軋速度;隨著鑄軋速度降低、鑄軋增大與鑄軋坯厚度減薄,軋制壓力增大;隨著鑄軋輥徑增大,軋制壓力增大,因此鑄軋機力能設計參數也要相應增大。
  9. In order to solve this problem, the distribution of the force was studied. with analyzing the data of ship launching, the paper educes seven typical distribution forms, include uniform distribution, sine distribution ( 1 / 2 amplitude ), trapezoid distribution, right triangle distribution, sine distribution ( 1 / 4 amplitude ), parabola distribution, isosceles triangle distribution

    主要有七種分佈形式,包括分佈趨勢較平緩的均勻分佈形式、正弦( 1 2波形)分佈形式、梯形分佈形式;出現在滑道最前端的直角三角形分佈、正弦( 1 4波形)分佈、拋物線形分佈;還有出現在分佈域中間的等腰三角形分佈。
  10. Steppe diversity, however, is characterized by higher plant diversity in the ecotone, especially in the forest - meadow region. diversity indices of plant communities reached peak values at the boundaries between the ecotone and the forest zone or the steppe zone, and between the forest - meadow region and the meadow - steppe region within the ecotone

    在森林-草原交錯帶多樣性指數較高,表現在多樣性指數在森林-草原交錯帶與森林帶和草原帶之間以及森林-草原交錯帶內森林草甸和草甸草原之間的邊界不同程度地出現
  11. 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;當西風漂流處于冷態,熱帶中東太平洋處于暖態( elnino?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。
  12. Therefore one of efficiency means to solve cracking problem of runners is to change distribution of welding residual stress of blades, to decrease welding residual tensile stress in the dangerous area of blades or even turn to compressive stress

    因此,改變葉片焊接殘余應力的分佈狀態,降低葉片危險域的焊接殘余拉應力,甚至將危險域的拉應力轉變為壓應力,是解決轉輪裂紋問題的有效途徑之一。
  13. In order to assure the bonded - strengthened beams to have ductility and fully exert the compressive capability of concrete, the paper deduces the lower limit compressive height used in design from the plane section assumption and theory of limit destruction. the lower limit compressive height is when the strain of compressive edge fiber reaches its peak value ( 0. 002 ) and the externally bonded material reaches its limited strain ( 0. 01 )

    由平截面假定和界限破壞理論,並保證粘貼加固梁具有一定的變形能力和較為充分地發揮混凝土的抗壓性能,本文以受壓混凝土邊緣應變達到應變( 0 . 002 ) ,而加固材料應變剛好達到極限( 0 . 01 )的界限破壞時混凝土受壓高度做為粘貼加固梁設計高度的下限_ ( c0b ) h 。
  14. 2. to design an axial magnetic field. the cathode lies in 0. 4 - 0. 7 of peak value of the magnetic field and excursion channel in a uniform magnetic field to suppress space charge effects ; to design transition section between the gun and excursion channel in converse computation. 3

    選擇電子槍陰極處于軸向聚焦磁場的0 . 4 - 0 . 7倍處;漂移通道(互作用)位於均勻軸向聚焦磁場中,以抑制電子束的空間電荷效應;使用反演算法設計電子槍和漂移通道之間的過渡
  15. Through analyzing bed ' s response to wave, in the condition that super - stratum is more hard and second - stratum is more soft in region of interest, super static interstitial hydraulic pressure amplitude die away rapidly between stratums, before in sight of boundary between hard and soft stratum, plane effective pressure increase to max. shear stress reach peak value when bed thickness is approximately 2. 7 meters, then it will decrease to the minimum on the place where the flexible soil has a common boundary with the rigidity, so the boundary is the most destroy plane on engineering. on the basis of reconnaissance in situ, in normal situation of sea, the structure slides to the basin along the boundary

    通過對底床在波浪下的響應分析,對于研究底床上層較硬而第二層較軟的情況,超靜孔隙水壓力幅在層間交界處迅速衰減,在臨近硬、軟地層交界處前,水平有效應力增至最大,剪切應力在底床厚度大約2 . 7米左右達到,然後減小,到硬、軟層土交界位置,達到最小,因此這個界面就是最容易發生破壞的工程軟弱面,現場勘查證明,即使在正常海況下,構築物也會沿坡以此交界面為滑動面,緩慢向「盆」底滑動。
  16. It is found that the maximum concentrations of the species change with the decrease of height, rising and dropping drastically in the transition region

    實驗表明,煙氣毒性成分的濃度隨高度的降低呈現明顯的階梯變化,在過渡段驟升驟降。
  17. The computation results show that after reinforcing the soft and weak floor, the deformation of the surrounding rock of sides gets smaller, especially, that in the lower part of the sides decreases to a larger extent ; the size of plastic zones and the scope of strength - softening region in surrounding rock of sides become smaller ; the area that has an increase in the maximal principal stress in surrounding rock of sides shrinks, and the zones of peak - value of maximal principal stress approach the periphery of roadway

    計算結果表明,加固軟弱底板後巷道兩幫圍巖變形量減小,尤其是巷道兩幫下部圍巖變形量減小幅度較大,兩幫圍巖塑性范圍和軟化范圍縮小,兩幫圍巖主應力升高范圍縮小,主應力峰值區域更加靠近巷道周邊。
  18. The result shows that the profile which has a narrow region of peak value of tangential wind and a shorter radius of maximum wind, corresponds with the leaning northwest track and the maintenance or enhancement of intensity ; the profile which has a wide region of peak value of tangential wind and a longer radius of maximum wind, corresponds with the northern - turn track and the attenuation of intensity

    結果表明:切向風速廓線上峰值區狹窄,最大風速半徑較小時,臺風呈西北方向移動的正常路徑,強度易於維持;切向風速廓線上峰值區寬平,最大風速半徑較大時,臺風呈北折轉向的異常路徑,強度易於衰減。
  19. Actual measurement indicates that the displacement and acceleration of rail vibration both have random property, the displacement spectrum mostly has obvious low frequency contets which occupy dominant peak value range

    實測表明,軌道振動的位移和加速度都具有隨機特性,位移頻譜組成以低階頻率為主,且有明顯占優勢的峰值區域。
  20. The peak components in the pre segmentation image and the distance - transformation image were extracted by area reconstruction dome improved transform, and were fused to form markers image

    基於面積重構頂改進變換濾除噪音能力強的特點,分別提取預分割圖和距離灰度圖中的峰值區域,融合後作為分水嶺改進變換的標識,由此得到分水線,從而完成對黏連氣泡的分割。
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