水動力強度 的英文怎麼說
中文拼音 [shuǐdònglìqiángdù]
水動力強度
英文
hydrodynamic intensity-
Multispectral data for bathymetry is often performed in relatively clear shallow waters, up to now, no one use multispectral data for bathymetry in estuary waters of yellow river, where the highest sediment concentration in the world has been observed. in another part of this thesis, multispectral data acquired by landsat - 5 tm and in situ data are used for bathymetry in estuarine waters of yellow river. statistical models based on one band and two bands of tm respectively are developed
利用兩期水深的比對可以揭示黃河水下三角洲的沖淤演變規律,但由於實測水深資料獲取較為困難,因而利用遙感來反演水深是一個重要的選擇,為此,本文在黃河口海現代黃河三角洲沖淤演變規律與遙感應用研究端走取兩個試驗區進行了多光譜遙感水深反演試驗,試驗結果表明,在極高泥沙濃度、較強水動力條件的黃河口海域,用多光譜遙感反演水深是可行的。Series of guowei dry - method composite machines as new product are explored with our many years ' experience, the requirement of the users. the first metal of this machine is adopted with : photo - ecectricity auto. tracking " correcting deviation equipment, magnetic powder tension control. pneumatic back pressure shifting blade, oven temperature controlled qutomatically, big roll with oil heating, coating composite pneumatic control as well as double frequency governor etc. it will make the machine with fast speed, lower voice, low polluted by air, shout consumptionfor energy, stable working etc. especially suitable for al - foil with smooth surface and no enough firming, glass paper, polyester ect. the composite material with hard strength, fireproof, anti - ventilation, anti - fatty, frozen, dudrable steam etc character. it is widely used in food, pharmacy, as well as daily articles to package
「國偉」 、系列乾式復合機,是我廠根據多年的復合機製造經驗及結合客戶需求,開發的新產品,該機第一基材採用了「光電自動跟蹤」糾偏放卷裝置,磁粉張力控制、氣動背壓移動式刮刀、烘箱溫度分段自動控制、大輥筒導熱油加熱、上膠復合氣動控制及雙變頻調速技術,使該機具有復合速度快、噪聲低、空氣污染小、能耗低、運行平穩等特點,適宜於表面光滑的鋁箔玻璃紙聚酰胺等與聚乙烯、聚丙烯等薄膜的復合,復合薄膜具有強度高、防水、防透氣、防油脂、可冷凍、蒸煮等優點,廣泛應用冷凍食品、乾燥食品、醫藥品及日用品的包裝。Compared to an ordinary rudder, the value of lift coefficient of ichthyoid rudder is about 30 % higher and the maximum rudder angle of it nearly reaches 45 degrees. ichthyoid rudder is a design under such a conception as to effectively utilize the propellers slipstream for rudder action, and featured by having a fish - shaped one - piece construction that is to say - no part of ichthyoid rudder can move in the water
其研究的魚形舵是一個沒有在水下移動的魚尾形剖面單片結構,增加了全舵的剖面拱度,使螺旋槳尾流的折射水量增強,進而增大了水動力的作用,使之比普通流線形舵的升力提高30左右。Through indoor routine tests, the physical and mechanical natures of intact and remolding soil of muck and mucky soil, in fuzhou, are analyzed in this thesis. the results reveal that water content, void ratio, shear strength of remolding soil samples are lower than those of intact samples. then qualitative analysis on the mineral composition, chemical composition and microstructure characteristic and types of the soft clay is given
本文通過室內常規試驗對福州地區淤泥及淤泥質粘土的原狀土樣和擾動土樣的物理力學性質進行了分析,觀察土樣受擾動后一些物理力學指標的變化情況,發現擾動軟粘土樣的含水量、孔隙比、抗剪強度指標均比原狀土樣低;並從軟粘土的礦物成份、化學成份以及微觀結構特徵和類型上定性地分析。The thesis is based on the performance testing system of the automobile fittings for shaoxing automobile fittings factory. the aim is not only to develop a testing system which is rapid, wieldy and exact, but to improve the level of r & d for the fittings testing and short the cycle of the development and production of the new products, so that the factory can compete with profitably and benefit great from it
本論文以紹興汽車配件總廠的「汽車配件性能測試系統」為主要研究背景的,目的在於建立一套能快速、易用、精確的汽車配件性能測試系統,提高汽車配件測試的研究開發水平,縮短汽車配件的開發和出廠周期,減少試驗勞動強度,解決了汽車配件測試困難的問題,從而能增強廠家的競爭能力,提高其經濟效益。At the moment, the thing is plans compiled by hand have a low quality and are effected by factitious factors. the execution of adms can not only improve the station organization and the level of the management but also accelerate the modernization of work which can make out good plans, make full use of the device of station, improve the accuracy coefficient of passenger trains and as a result the whole level of railway organization is to be lifted, the modernization of railway system management is to be accelerated at the same time both the economic and social efficiency are to be improved
現行手工編制不但勞動強度大,而且受許多人為因素的影響,編出計劃的質量得不到保證,所以客運站站調輔助決策管理系統的建立,不僅可以提高車站工作組織和車站技術管理水平,促進車站工作組織與管理現代化,從車站內部盡可能實現作業計劃優化,挖掘車站潛力,提高旅客列車正點率,而且可以提高鐵路運輸組織水平,促使鐵路車站管理手段的現代化,從而提高鐵路運輸的經濟效益和社會效益。Series of screen - bohou adopt large amplitudes, big intensity of vibrations, flexible screen surfaces, the motion parameters characteristics of adjustable amplitudes ; the unique structural features of " board of screen active, box inactive, unattached vibration of the screen surface " ; though segmented, multi - segments of screen surface jointed, large - scale of screen equipments can be realized, the advantages of large area, big handling capacity and no special requirements to the water of materials make the screen to be the best screen equipments used for the small wet materials
簡介:博后篩系列採用大振幅、大振動強度、彈性篩面、振幅可調的運動參數特點;及獨特的「篩板振動、篩箱不振動、各段篩面獨立振動」的結構特點;經分段、多段篩面組合,實現了篩分設備大型化,大面積、大處理能力的優勢及對物料水分的無特殊要求,是潮濕細粒難篩物料的最佳篩分設備。Meanwhile, the study also shows that the diversity of studied cave animals is inversely proportional to human population density and water quality ; and bio - diversity, to some extent, is proportional to soil fertility and amount of chemical fertilizer, but inversely when excessive ; the correlativity between bio - diversity and vegetation cover rate is not obvious, when ground vegetation is strongly interfered by human being ; the amount of diestrammena marmorata is proportional to the d iversity of plant, and inversely proportional to soil fertility, and in a way, to water quality ; and the correlativity between community and water quality and soil fertility, and between water quality and the amount of mosquito and fly, is not as good as expected. the author points out that diestrammena marmorata, bat, mosquito, fly, oreolalaxrhohostig metus ( or cudata ), and fish can be chosen as in
同時,研究還表明:調查洞穴的物種多樣性與人口密度、水質成負相關;在一定范圍內,物種多樣性與化肥施用量、土壤肥力成正相關,超過一定的值則成負相關;在人類對地表植被的高強度作用下,物種多樣性與植被覆蓋率的相關性不明顯;蚊蠅數量與土壤肥力基本上呈正相關;斑灶馬數量與植物種數呈正相關,斑灶馬數量與在一定水質范圍內與水質呈負相關,與土壤肥力呈負相關;群落數與水質和土壤肥力、蚊蠅數量與水質都不能表現較好的相關性;研究認為,可以選擇斑灶馬、蝙蝠、蚊蠅、紅點囊蟾(或有尾類) 、魚類等作為指示動物對洞穴環境進行監測。Some policy priorities are formulated for the development of 3 hot crops, which include ( 1 ) a well system of breeding for the 3 crops has to be set up ; ( 2 ) the growth area of the 3 crops has to be well planned and organized ; ( 3 ) the leading enterprises have to be empowered for competence in market ; ( 4 ) a well performing market system be prescribed ; ( 5 ) technology should be emphasized for the improvement of productivity of the crops ; ( 6 ) leadership should be improved in order to create a good environment for the development of baodi ' s featured agriculture
研究和提出了適合寶坻特色農業發展的有關對策: ( 1 )完善「三辣」良種育繁供體系建設,為產業化發展打下基礎; ( 2 )優化「三辣」區域布局,提高組織化程度; ( 3 )培育壯大龍頭企業,提高競爭力和帶動力; ( 4 )完善農產品市場體系和流通體系; ( 5 )發揮科技支撐作用,提高「三辣」生產的水平; ( 6 )加強領導,為寶坻特色農業產業化經營創造良好的外部環境。As to the current problems existing in the identification for these flutter derivatives, the dissertation tries to trace the development in the identification for the past unsteady aerodynamic forces of long - span bridges. it also investigates the method for flutter and buffeting analysis and the flutter derivatives. based on the present methods used in obtaining the unsteady aerodynamic forces and flutter derivatives, and co - funded by a natural scientific fund from the nation and a key project fund from the railway ministry, the current research has attempted to develop a device which can be employed in the wind tunnel to test flutter derivative through a forced vibration method
鑒于目前橋梁斷面顫振導數識別的水平和存在的問題,本文通過對大跨度橋梁非定常氣動力、顫振分析方法及顫振導數識別方法的回顧和評述,基於現有的非定常氣動力和顫振導數的測試方法,在國家自然科學基金與鐵道部重點學科基金的聯合資助下,研究開發了一套在風洞中採用強迫振動法測試顫振導數的裝置。In the summer stratified water column, the deeper the maximum depth of food distribution is, the stronger the dvm is performed ; the increase of the gradient of temperature in the thermocline layer can decrease the magnitude of the dvm and form the thermal barricade to the copepod ; the effects of the predation pressure on dvm is complex. on the one hand, the variations in the distribution depth of the predation pressure vs. the thermocline layer or the depth of the maximum food can modify the dvm patterns of the copepod. on the other hand, different predation pressure induces different dvm patterns
在夏季分層水體中,食物的最大分佈深度越大,動物向下遷移的幅度也越大;溫躍層的溫度梯度增大可以減小動物遷移的幅度,成為橈足類垂直遷移的溫度屏障;捕食壓力對垂直遷移的影響較復雜,一方面,捕食壓力的分佈深度與溫躍層或食物峰值的相對位置的變化能夠改變橈足類垂直遷移的模式,另一方面,捕食壓力強度不同,橈足類垂直遷移的幅度也不同,捕食壓力越大,遷移的幅度越大,當捕食壓力增加到一定程度,橈足類停止向上的遷移,大部分時間呆在水體深層,可能進入捕食壓力引起的「滯育」狀態。The activity area of sediment and solution in gooey is distributary river, which has gigantic water power, good degree of sorting and roundness, gruff grain. lower mud and mica content
分流河道的主體部位水動力較強,分選性和磨圓度較好,粒度粗,雲母礦物和泥質含量較低,是膠結物沉澱和溶解的活躍區,因而也是物性相對較好的地方。The reservoir heterogeneities are mainly controlled by the intensity of hydronamic force, sedimentary mode, the ingredient and content of the filler, i. e., depositional environment is the most important factor
儲層的非均質性主要受控於水動力強度、沉積方式以及填隙物的成分、含量和分佈,其中沉積環境是最本質的因素。The main features in the study of flood forecasting and control system are as follows : ( 1 ) runoff generating and confluence theory and hydro - dynamic method are adopted to predict the water level of taihu lake and key nodes, the basin wide forecasting and control system with the function of real time correction has been first established in plain river network to meet the complicated flow conditions of taihu lake basin and to enhance the reliability of forecasting results ; ( 2 ) according to the rainfall in foreseen period multiple schemes can be made in the forecasting model and adjusted with time, which overcomes the errors caused by the uncertain rainfall in the foreseen period so as to make the forecasting results approach reality
本文所研究的預報調度系統有如下特點: ( 1 )本系統採用產匯流理論和水動力學方法預報太湖及重要節點水位,首次在平原河網地區建立了具有實時校正功能的全流域預報調度系統。以適合太湖流域復雜的水力條件,增強預報的可靠性; ( 2 )預報模型可以根據預見期降雨量進行多方案預報,並隨時間推移,可以實時進行調整,克服由於預見期降雨不確定引起的誤差,使預報結果更接近實際。The surface panel method has been applied to predict the hydrodynamic performance of highly skewed propeller. the surface of propeller and its trailing vortex are discreted by a number of small hyperboloidal quadrilateral panels with constant source and doublet distribution. for highly skewed propeller, the conventional method generating grid oriented along constant radii will result in a high aspect ratio and a high skewness and a twist panel near the propeller tip on blade surface, which result easily in incorrect calculation results of velovity on blade surface, even in iteration divergence and calculation failure. a “ non - conventional grid ” is developed to acoid these problems. this grid can effectively solve the problem of the calculation and convergence for highly skewed propeller. the non - linear kutta condition of equal pressure on upper and lower at the trailing edge is executed by the iterative procedure. by sample calculating, the obtained results are satisfied the experimental data
採用面元法預報大側斜螺旋槳水動力性能,螺旋槳表面及尾渦面離散為四邊形雙曲面元,每個面元上布置等強度源匯和偶極子分佈.對于大側斜螺旋槳而言,槳葉表面採用常規的等半徑網格劃分方法在近葉梢處將導致大展弦比、大側斜和扭曲面元,這容易使槳葉表面速度的計算結果不正確,甚至會導致迭代過程發散及計算失敗.文中建立了一種「非常規網格」劃分方法,能有效地解決大側斜螺旋槳的計算和收斂問題.槳葉隨邊處通過迭代實現非線性等壓庫塔條件( 2 ) the effect of rainfall splash intensity on hydrodynamic features of sheet flow indicated that, the former had a remarkable effect on the latter
( 2 )雨滴打擊強度對坡面薄層水流水動力學特性的研究結果表明,雨滴打擊強度對坡面薄層水流水動力學特性(流速、水深、流態、阻力系數等)影響顯著。It indicates that the diffusion is the important factor of gas losing in binbei region. this paper researched the hydrodynamic pressure and its change characteristics in the space by means of the ion concentration of formation water, reduced pressure and its change characteristics in the plane, the result indicates that from north - east to south - west, the hydrodynamic conditions are better and better in binbei region, the areas near the binbei railroad are the favorable area for oil and gas to accumulate
利用水化學離子濃度,折算壓力大小及其平面變化對濱北地區水動力強弱及其空間變化特徵進行了研究,結果表明濱北地區水動力條件變化趨勢為由東北向西南逐漸變弱的特點,由此推斷濱州線附近應是濱北地區油氣保存的有利地區。The coarser sedimentary layers reflect the period of warm and wet climate, during which the natural runoff of weihe river violently rose, the speed of flow increased and the flood easily occurred ; on the contrary, the finer sedimentary layers reflect the period of cool and dry climate, during which the natural runoff of weihe river fell and the speed of flow slowed
在氣候相對溫濕、降水量較大的時期,渭河水動力條件增強,流量增大,流速加快,出現粒度明顯變粗的沉積夾層,此時也是洪水多發時期;而在氣候相對涼干、降水量較少的時期,渭河水動力條件減弱,流量減少,流速變慢,因此出現粒度明顯變細的沉積夾層。On the basis of consulting a large number of literatures domestic and aboard, the present situation and latest development of hydrodynamic characteristics of overland flow and slope erosion dynamic process were reviewed. aiming at revealing the effect of rainfall splash intensity on hydrodynamic features of sheet flow and slope erosion, with a combination of runoff experiment and simulated rainfall experiment with a fixed intensity, applying hydrodynamic and erosive theory, the effect of rainfall on overland flow velocity and the influence of rainfall splash intensity on hydrodynamic features ( such as velocity, flow depth, flow patterns, resistance ) of sheet flow on slope and the influence of rainfall splash intensity on the overland flow sediment contain was researched
本文在查閱了大量國內外文獻資料,全面了解了坡面流水動力學特性及坡面侵蝕動力過程等方面的研究現狀及最新進展的基礎上,以揭示雨滴打擊動能對坡面薄層水流水動力學特性及坡面侵蝕的影響為目標,採用水槽放水試驗和定雨強模擬試驗相結合的方法,運用水動力學與侵蝕理論,研究了降雨對坡面薄層水流流速的影響,雨滴打擊強度對坡面薄層水流流速、水深、流態、阻力等水動力學參數的影響,雨滴擊濺作用對坡面流泥沙含量的影響。Based on the fem model of the dam - reservoir system, the influence of water compressibility to the hydrodynamics is systemically analyzed and researched. it is showed thaf the water compressibility has significant effect to the size and distributing of hydrodynamics on the high dam, and the absorbency of reservoir bottom has a role as a damper on the dam - reservoir system
基於庫水體各類邊界條件的有限元模型,系統分析了可壓縮性對壩體動力響應的影響,表明水可壓縮性對高壩動水壓力強度和分佈具有顯著影響,而庫底邊界條件對大壩的地震反應有抑制作用。分享友人