總阻力 的英文怎麼說

中文拼音 [zǒng]
總阻力 英文
drag overall
  • : Ⅰ動詞(總括; 匯集) assemble; gather; put together; sum up Ⅱ形容詞1 (全部的; 全面的) general; o...
  • : 動詞(阻擋; 阻礙) block; hinder; impede; obstruct
  • : Ⅰ名1 (力量; 能力) power; strength; ability; capacity 2 [物理學] (改變物體運動狀態的作用) forc...
  • 阻力 : 1 (阻礙事物發展的外力) obstruction; resistance 2 [物理學] resistance; drag; drag force; nowel; ...
  1. Abstract : apply computer simulation to the distribution pattern of air - flow without considering the cold condition of the combustion and compare the flow patterns under different designed circumstances. and the effect of the design of the partition in the air way of the burner on the flow and mixture of gas and air is especially studied. the result shows that the design of partition plays a very important role in strengthening the mixture of gas and air, but increases the loss of the resistance in the air way and the total pressure of the air way in same working conditions needs increasing

    文摘:應用計算機模擬的方法,在不考慮燃燒的冷態情況下,研究了熱風爐燃燒室內的氣流分佈規律.在此基礎上,比較了2種不同設計方案的氣流流動特徵,尤其是研究了燃燒器空氣通道內流板的設置與否對空氣和煤氣的流動和混合的影響.結果表明,流板的設計對加強空氣和煤氣的混合有著極為重要的作用,同時也增加了空氣管道的損失,在同樣的工況條件下需要提高管道系統的
  2. Secondly, the total resistance is studied directly. the relationship between total stream power and effective stream power is proposed by analogizing the method of engelund

    二是直接研究河床總阻力,類比engelund的方法,建立了水流功率與沙粒水流功率的關系。
  3. On this foundation the article inducts in detail the method which is based on the relative settlement of calculating unit area end support ( qb ) force at the same time considering the feature of pedestal pile ' s " arch effect " the article introduces conception of pile effective length and finally obtain t he formula of calculating man - made pipe with bulb - shaped axial carrying capacity. the article uses marc program to calculate and analyze foundation soil ' s stress and displacement and gets the change curve chart and the proportion that is shared by king - pipe side soil friction resistance and pipe end counterforce respectively. the article inducts the structure of pedestal in detail on the basis of generalizing pedestal application cases of many countries

    在此基礎上論文詳細歸納了以相對沉降為依據確定單位面積端承q _ b的計算方法,並考慮擴底樁的「拱效應」特點引入了有效樁長的概念,最後結合公路規范推出了比較實用的人工挖孔擴底樁軸向承載計算公式。論文運用了marc程序對地基土的應和位移進行了有限元數值計算分析,得到了地基土的應和位移場的變化曲線和在加載過程中樁側土摩和樁端反各自所承擔的比例;本文還在結各國挖孔擴底樁應用情況的基礎上就擴底樁的構造進行了詳細的歸納。
  4. By introducing the resistance equations of sand wave by others, the total resistance can be computed

    在引入沙波的有關計算公式后,即可將以上幾種單元疊加計算河流總阻力
  5. Total tractive resistance

    牽引
  6. Secondly, we recommend the practical experiment of cast - in - place piles, including field solid and liquid qualification, experiment purpose, experiment project, experiment equipment, experiment process and the notice of experiment. thirdly, we processed and analyzed experimental daters, studied the rule of strength transferring, and studied the rule of strength transferring of check resistance and side of peg rub resistance, contrasting with common re - draw peg. at last, we advance some unfathomed problem and prospect foreground of cast - in - place piles

    本文首先對支盤樁的基本原理進行了闡述,對其施工過程以及成型過程進行了描述;然後對本次抗拔支盤樁現場試驗進行了介紹,包括試驗現場地質水文條件,試驗目的、試驗方案、試驗設備以及試驗過程,並對試驗注意事項進行了歸納結;分析了支盤裝原位抗拔,研究了樁身軸傳遞規律以及支盤和樁側摩的荷載傳遞規律,並與普通抗拔樁進行了相關對比;最後,本文提出了本次試驗尚未解決的一些問題,並對支盤樁的前景進行了展望。
  7. And experimental study on the heat transfer performance and pressure drop characteristic of the process of bubbling evaporative cooling are carried. as there are so little attention and studies on the process bubbling evaporative cooling about heat transfer in the world at present, this paper mainly deals with the effects of the different bare tower velocity, weir height, heat flux density and plate perforation geometries on the heat transfer coefficient and the pressure drop of the process of air flowing

    由於目前國內外對鼓泡蒸發冷卻過程在換熱方面的關注和研究較少,本文對不同空塔速度、不同堰高、不同熱流密度、多孔板的不同幾何尺寸對換熱系數及空氣流動過程的影響進行了實驗研究及理論分析,結了本實驗條件下換熱及的實驗關聯式。
  8. Exciting method is used to measure the damping, the four damping coefficients of the radial part and a damping coefficient of the thrust part can be obtained though hammering the testing bearing which is in a equilibrium position. based on the testing data, the dynamic characteristic curves of the radial - thrust floating ring hybrid bearing are drawn and compared with the theoretical curves

    採用激振法測量軸承的尼,對處于平衡位置的測試軸承分別沿水平方向、上45度方向及軸向進行錘擊,根據錘擊法原理求得各個轉速下軸承徑向部分內、外膜尼系數以及推部分內、外膜尼系數。
  9. Generally, the membrane thickness is much larger than the pore dimension. therefore, the resistance of the pore channel was the control resistance of the membrane diffusion process. while the existences of the stephen diffusion and pore interaction well explained the reason why the total membrane surface would be used as the interfacial area through where the mass transport took place

    盡管由於膜的厚度比孔的尺寸要大很多, stephen擴散以及孔之間的相互作用對通過膜的擴散影響很小,但它們存在的結果是使整個膜表面的氣體濃度趨於一致。
  10. The method is described as follows : the velocity of the moving part and the gas chamber pressure were measured with a dynamic test measurement system ; a dynamic model was built on force analysis of the moving part ; the total kinetic resistance replaced the horizontal friction and water resistance ; then the resistance - velocity relation curves at moving stages were obtained ; with the empirical formula of the gas chamber pressure and the resistance - velocity relation curves, the preliminary dynamic characteristics were analyzed and the structural form and key parameters of an underwater assault rifle were determined

    具體方法為:由動學測量系統測得活動件速度和氣室壓;分析活動件的受,建立動學模型;以運動總阻力代替水平方向上的摩擦和水,獲得各運動階段的速度關系曲線;利用氣室壓經驗公式和速度關系曲線,對水下突擊步槍進行初步的動學分析,確定其構造型式及主要參數。
  11. The total kinetic resistance of a moving part ( a firearm bolt ) was acquired by experiment because water resistance was difficult to be got accurately

    因水較難準確求得,可利用實驗確定活動件(槍機)運動總阻力
  12. Exposure to uv - b radiation reduced the height, leaf area of plants, and the weight of roots, stems and leaves. as a result, total biomass and accumulation of dry matter were decreased. exposure to uv - b radiation significantly increased the stomatal diffuse resistance and decreased the transpiration rate ; however it hardly affected the water content of seedlings

    含量、而增加zr的含量;導致氣孔增加,蒸騰速率下降:對括樓植株水分含量無影響;使植株生長受抑,表現為矮化,植株各器官及生物量增加均受到影響,干物質積累量也相應下降; uv . b輻射對括樓根冠比無影響。
  13. As a new type of energy - saving equipment, the tubular heat exchanger with longitudinal flow of the shellside fluid ( thelfsf ) has many remarkable advantages. it betters anti - vibration and anti - smudge performance, enhances heat transfer efficiency, and decreases the shellside pressure loss. it also prolongs service lifetime, reduces the weight and saves material

    新型縱流殼程換熱設備作為一種新一代節能降耗設備,具有優良的防流體誘導振動性能、傳熱性能好、傳熱效率高、流體流動小、抗結垢能強、重量輕等優點,是鄭州大學「熱能工程研究中心」專利產品,為了加快該設備的推廣, 「中心」研發了hecad軟體系統,實現了新型換熱設備工藝設計、機械設計、零部件,圖及裝圖繪制一體的cad軟體化。
  14. The experimental results of the flow characteristics of the mmc heat sink indicate that the critical reynolds number signifying the transition from laminar flow to turbulent flow is in advance ; under the same experimental conditions, the variation in entrance direction of the microchannel inlet and outlet has little effect on the microchannel ; the experimental values of the friction factor of the de - ionized water in a microchannel agree well with those calculated using the theoretical laminar formula ; furthermore, a comparison of the experimental results and simulation results shows that navier - stokes equation and rng - turbulence model can be used to model the laminar and turbulence flow regions in a microchannel ; meanwhile, the correlations of the flow resistance in the turbulent flow regions for the de - ionized water as the working fluids are obtained from experiments

    對歧管式單通道熱沉流動特性的研究結果表明,微通道內流體流態由層流向紊流轉變的臨界雷諾數提前;改變流體的進出口方向對熱沉壓降造成的影響很小;摩擦系數的實驗值與理論值較接近;數值模擬結果能夠與實驗值較好吻合;並由實驗給出了紊流區流動的實驗關聯式。此外,選用十二烷基硫酸鈉( sodiumdodecylsulphate , sds )以及烷基多糖苷( alkylpolyglycoside , apg )作為減添加劑,研究了表面活性劑添加對微通道流動特性的影響。
  15. The results showed that soil surface resistance often increased with evaporation time and cumulative evaporation, but the relation might be changed by variation of difference of vapour pressure between evaporating plane and atmosphere ; difference of vapour pressure between evaporating plane and atmosphere was one of the major factors for determining the soil surface resistance

    結果表明,土壤表面趨勢是隨蒸發時間的延長和累積蒸發量的增加而增大,但這種關系有可能被土壤蒸發面和大氣間水汽壓差的改變所打破,土壤蒸發面和大氣間水汽壓差是決定土壤表面的主要因素之一。
  16. Finally, it is proved feasible to simulate the road - driving condition of electric bicycle on the testing platform. the collectivity programming of electric bicycle automatic testing system is maken out, including the simulated application strategy and method of road - resistance and wheeling inertia, design principle and evaluation system

    ( 2 )對電動自行車自動檢測系統設計做出了體規劃,確定了行駛與轉動慣量的模擬策略和方法,明確了系統設計原則,建立了系統評價體系,運用多級模糊綜合評價模型對各設計方案進行了評價選優。
  17. After that, based on the experimental results of pressure loss and filtration efficiency for the filters in different sizes under different flow rates, the resistance formulae is further proved that can be applied in the engineering

    然後利用正交試驗法進行實驗的設計和安排,確定了測試過濾器的規格尺寸,並對各種試驗規格過濾器在多種工況下的和效率進行了實測,其結果證明了公式的工程實用性。
  18. The calculating formulas show that braking distance depends on initial braking speed, road dragging coefficient, mad slope grade, braking force increasing time ; and nothing to do with total mass of crane

    計算公式表明:決定汽車起重機制動距離的主要因素是制動初速度、路面系數、道路坡度和制動增加時間;汽車起重機質量與制動距離無直接關系。
  19. According to the the regression analysis on the bloting and shotcreting roadways of henan pingmei group, the regression equation on the degree that absolute grade and area of roadway influence coefficient of frictional resistance is built in the paper. the notable character test of the regression equation is completed. at last, the degree that absolute grade and area of roadway influence coefficient of frictional resistance is discussed and summed up. the practical and guiding sense in choosing coefficient of frictional resistance of congeneric roadways is given in the paper

    通過對平煤集團大量的錨噴巷道的回歸分析,建立了巷道壁面絕對粗糙度和巷道斷面積對摩擦系數影響程度的回歸方程,並對回歸方程作了顯著性檢驗,最後對巷道粗糙程度和斷面積對錨噴巷道摩擦系數的影響程度進行了討論和結,對同類巷道摩擦系數的選取具有實踐指導意義。
  20. The experiment results indicate that 90 % pressure drop is attributed to minor pressure drop in heat sink and these results are higher than the theoretical value. the thermal resistance will drop with the increasing of pumping work and the extent of the drop will decrease when the pumping work reach some value. the maximal temperature difference between the heat - sink surface and the coolant will increase with the increasing of heat fluxes, as is same to the maximal temperature difference on the heat - sink surface

    研究表明,在微射流熱沉中,熱沉總阻力主要是由局部引起的,佔到熱沉總阻力的90 % ;微射流陣列冷卻熱沉熱隨泵功的增加而減小,但是當泵功增加到一定程度時,熱變化趨于平緩;熱沉散熱片底面溫度和溫差隨熱流密度增加而升高,但是溫差保持在一定范圍之內。
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