水流尺度 的英文怎麼說
中文拼音 [shuǐliúchǐdù]
水流尺度
英文
stream dimension- 水 : 名詞1 (由兩個氫原子和一個氧原子結合而成的液體) water 2 (河流) river 3 (指江、河、湖、海、洋...
- 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...
- 尺 : 尺名詞[音樂] (中國民族音樂音階上的一級 樂譜上用做記音符號 參看「工尺」) a note of the scale in ...
- 度 : 度動詞[書面語] (推測; 估計) surmise; estimate
- 水流 : 1. (江河) rivers; streams; waters2. (流動的水) current; water flow; fluent; flow; [水文] stream current
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Besides, the upward motion on the aweather slope of main mountains of zhoushan archipelago can induce more precipitation and orographic highs
另外,氣流爬越島嶼的主要山脈時的上升運動,會導致迎風坡的降水增多,並誘生中小尺度的地形高壓。The horizontal width of the condensate falling from the convective cells was much less than the width of the observed mesoscale downdraft ( 60 km compared to 150 km )
從對流單體降落的冷凝物的水平寬度比觀測到的做尺度下沉氣流的寬度小得多(前者60公里而後者150公里) 。The spatial condition and both the technical and economic feasibilities for the layout of the light - court for the auxiliary powerhouse under the condition of higher fluctuation of the flood level downstream is basically analyzed ; in which the principles of the layout and both the spatial dimension and configuration are discussed, and then a actual design case is given with the preliminary evaluation on the ventilating and lighting effect of the light - court
初步分析了下游洪水位變幅較大等環境條件下,貫流式水電站副廠房設置自然通風採光天井的空間條件及其技術性和經濟性,討論了天井布置原則和空間尺度與形態處理,給出設計實例並初步評價了天井通風採光的效果。The result indicates that, in the course of the rainstorm in huoshan, there are obvious low - level jet of great intensity, infection of mesoscale shear line, enhancement of plus vorticity which increases intensity of convergence, improves ascending velocity and brings on precipitation, and quick enhancement of helicity which provides the basis to forecast, in addition, convergence of moisture flux and analyzed potential vorticity which reflects baroclinic convective instability sufficiently indicate the characteristics of the rainstorm
結果表明:此次霍山暴雨發生前後,存在明顯的大強度低空急流,並受到中尺度切變線的影響,而且正渦度的加強引起了輻合加劇,提高了上升速度從而引起降水,同時暴雨發生前螺旋度的迅速增強,也為預報提供了根據,另外水汽通量的輻合以及分析位渦反映出的斜壓對流不穩定都充分體現了這次降水的特點。This paper use the ncep / ncar day - to - day reanalysis data of 500hpa high field and so on, choose ural mountain, baikal, okhotsk as the key district, the mid - high latitude of eurasia circulation courses that have long duration ( scale of time is middle, namely during 10 - 30 day ), maybe continue continuously after being intermittence of 1 - 2 days in middle, appear repeatedly is for research object, define an index " i " of the circulation pattern over mid - high latitude of eurasia. a method is proposed to identify the summer typical persistent circulation pattern at 500hpa levels over eurasia mid - high latitude. the climate characteristics of those typical persistent circulation patterns are studied
本文利用ncep / ncar再分析逐日500hpa高度場等資料,選擇烏拉爾山、貝加爾湖、鄂霍次克海這三個地方作為關鍵區,以夏季歐亞中高緯度持續時間長(時間尺度屬于中間時間尺度,即10 ? 30天之間) 、中間可能會間歇1 、 2天然後又繼續持續、反復出現的環流過程為研究對象,定義了一個夏季歐亞中高緯流型指數,在此基礎上提出了一種對夏季歐亞中高緯500hpa典型持續流型的界定方法,研究了典型持續流型的氣候特徵,分析了流型指數的年代際變化,以及對應不同階段、不同流型的降水場、加熱場、海溫場等的主要特徵。Climatological characteristics, which can provide some drought or flood years with large - scale background, are investigated for large - scale water vapor transport over asian - australian monsoon region based on vertically integrated water vapor flux by pentad from 1980 to 1997. at the same time, the differences of moisture transport over the yangtze river basin between drought and flood and the moisture budgets over eastern china from april to september are examined. major results are as follows : i
使用1980 ? 1997年垂直積分的整層水汽輸送通量資料,從氣候平均的角度分析了亞澳季風區大尺度水汽輸送演變和偏南風水汽輸送在東亞地區推進的氣候特徵,為研究異常年份旱澇事件的產生提供了相應的大尺度背景;同時還討論了長江流域旱澇年水汽輸送的差異以及4 - 9月我國東部各區域的水分收支情況。The accumulation and transportation of moist available potential energy and the release of the condensation heat offer the material condition for this heavy rainfall. under the condition of the air ' s movement through the stiff moist isentropic surfaces, the development of vertical vorticity of mesoscale low vortex system is accelerated due to the slantwise vorticity development, and to form stronger convective system, so as to result in heavy storm rainfall
濕有效能量的積聚和輸送為強降水的發生、發展提供了充分的物質條件;由於沿陡立等熵面的空氣上滑運動,因傾斜渦度發展造成了中尺度低渦系統垂直渦度迅速增加,促進了低渦的快速加強,形成強對流系統,導致強暴雨過程的發生。( 3 ) the polar eddy, the west circumfluence on 500hpa medium latitudinal region ands subtropic circumfluence are the key systems of tpnes floods precipitation and, the wet years have abundant vapor, moreover, the omga is positive in all atmosphere
( 3 )極渦、中高緯西風環流系統和副熱帶系統是影響青藏高原東北側區汛期降水的大尺度環流背景關鍵系統。同時,多雨年的主要流場特點是有利於水汽輸送,且整層大氣始終表現為上升運動。The ncep / ncar global reanalysis data about 55 yean ; ( 1948 - 2002 ), the observed data about 2 years ( 1999 - 2000 ), the meiyu data in the mid - lower reaches of the yangtze river and the precipitation data at 160 stations in china duing 1951 to 2000 are used in the paper. we present a preliminary study on the relationship between the precipitation total for meiyu and the summerly precipitation in the eastern side of the northwest china. then using nonhydrostatic version mm5 with one nested grid, the effect of the circulation patterns for meiyu on the summerly precipitation in the eastern side of the northwest china was simulated by numerical simulation of full physics
本文採用1948 2002年ncep再分析資料、 1999 2000年的全球地面、高空觀測資料、 1951 2000年梅雨以及全國降水量資料,初步研究了長江中、下游地區梅雨事件與西北地區東部夏季降水的聯系,並用mm5中尺度非靜力模式模擬了多(少)梅雨環流型對西北東部夏季降水的影響;另外,還分析了梅雨與四川盆地、東南沿海地區夏季降水的聯系。By using a same boundary dimensions high efficient and new type copper exchanger substituted carbon steel oil condenser, and increasing flow rate of circulation water to reduce the temperature of freezing oil which feeds into compressor stage, to eliminate the malfunction during compressor operation, and improve running efficiency of the machine
採取將碳鋼材質的油冷卻器更換成等外形尺寸的高效新型銅管換熱器、增加循環水流量的方法,降低了進入二段壓縮機冷凍油溫度,排除了壓縮機運行中的故障,改善了機組的運行效率。The gas field in pemfc means the gas distribution in gas source, gas inlet tube ( scale of m ), gas - blower, gas manifold ( scale of cm ), channel ( scale of mm ), diffusion layer ( scale of um ), hydrophobic layer and catalyst layer ( scale of nm ). the aim of changing the scales is to make oxygen reach reaction area as evenly as possible
Pemfc的氣場指在氣源、進氣管(分米級) 、風機、進氣箱(厘米級) 、流道(毫米級) 、擴散層(微米級) 、疏水層(亞微米級) 、催化層(納米級)中的氣體分佈,每一級尺度的變化是為了氣體的進一步均勻化。Firstly, my paper analysized the main factors which influence the amount of low flow in karst drainage such as the area of drainage, lithology, the type of landforms and its special assembly, forest etc from the point view of drainage structure and the relationship between the different type of landforms and the amount of low flow in particular
對于喀斯特流域的枯水研究內容主要包括以下幾個方面:一是從流域結構的角度,分析了影響喀斯特流域枯水徑流特徵值的主要因素,如空間尺度、巖性、地貌類型及其空間組合、植被等。Thirdly, the mathematics model of forecasting low flow was established in fengcong and fenglin regions according to these factors influencing the amount of low flow in karst drainage ( the area of drainage, lithology, the type of landforms and its special assembly and forest ) the conception of low water resources carrying capacity was first put forward according to the changing law of low water resources in space and the situation of exploitation and utilization in karst drainage ( ie, under the condition of the virtuous ecological environment and the available technology, the explorable amount of water resources in certain areas is capacity and limitation which is able to coordinate the development of population, enviroment and economy during the period of low flow seasons ) and preliminarily analyzed its connotation, characteristic and established the index system of low flow in karst drainage
三是根據影響喀斯特流域枯水徑流的下墊面因素(空間尺度、巖性、地貌類型、植被) ,分別對峰叢和峰林等喀斯特地區建立枯水徑流預測模型。根據喀斯特流域枯水資源的空間變化規律以及實際開發利用狀況,首次提出了枯水資源承載力的概念,即在枯水季節期間,保持良性的生態環境和現有的技術條件下,某一區域內可開採的水資源量對支持該地區人口、經濟與環境協調發展的能力和限度。並初步分析了枯水資源承載力的內涵、特性,從水資源的供需方面確立了喀斯特流域枯水資源承載力的指標體系。For understanding the dynamic processes of the all scales cloud systems of mei yu, and the relationship between mei yu system and the summer monsoon of eastern asia, the hubex has been carried on by the cooperation of china and japan in summer since 1998. the data observed by hubex, the data observed by other monsoon experiments and the general data ( gts data ) were merged into the assimilation system of game and made into the game reanalysis data, so how the game reanalysis data
為了更好地理解梅雨鋒區多尺度雲系的能量與水分循環過程以及他們與地面水文過程的相互作用,從而搞清梅雨區雲系的多尺度動力學及其與東亞季風的關系, 1998年夏季中日合作開展了淮河流域能量與水分循環試驗( hubex ) ,該試驗和game其他試驗的探空加密觀測資料作為原始資料的一部分經過同化分析,得到了game再分析資料。The project plans to implement the main studies in five aspects on the three key scientific issues and considering the needs of practical control, which include : 1 ) study of mechanisms and regularities of water cycle and water resources evolution in the haihe river basin ; 2 ) study of evolutionary and restoration mechanisms of water environment and ecology in the haihe river basin ; 3 ) study of basic theories and methodology for the assessment of utility of moisture use on different scales ; 4 ) study of mechanisms of water cycle and high efficiency water use for farmland and urban units ; and 5 ) study of integral multi - dimensional critical control of water cycle system of river basins
圍繞三大關鍵科學問題,結合實踐調控需求,項目擬開展五方面的主要研究:海河流域水循環與水資源演化機理與規律研究;海河流域水環境與生態演變機理與修復基礎研究;不同尺度的水分利用效用評價基礎理論與方法研究;農田與城市單元的水分循環與高效用水機制研究;流域水循環系統的整體多維臨界調控研究。And, we also have had the relation between the size of the horizontal circulation regions and the fr number around the dike for the flow - deflection method. the results of this study show that, using the method of flow - deflection or " sucking - spouting " water, the flow pattern can be improved, the size of the horizontal circulation regions and the sedimentation volume caused by the horizontal circulation can both be reduced. so, they can be adopted to improve the navigation condition of upper approaching channel of three gorges project, which could guarantee the safety of navigation
通過試驗,得到了以下創新的成果: 1 、不加吸、噴水時,丁壩后的迴流長度約為丁壩長度的8倍; 2 、加吸、噴水可以減小丁壩后的迴流尺度和強度,並得出了有理論根據的吸、噴流量與迴流尺度減小之間的定量關系以及吸、噴流量與丁壩周圍流速梯度之間的定量關系; 3 、加吸、噴水可以減小迴流淤積,並得出了吸、噴流量與淤積量減小之間的定量關系以及迴流尺度減小與淤積量減小之間的定量關系; 4 、加導流板可以減小丁壩后的迴流尺度,並得出了丁壩周圍的水流fr數與迴流尺度減小之間的定量關系。To solve this problem, the method of " sucking - spouting " water has been put forward by lin bingnan, based on the theory of boundary layer control, namely, sucking part of the discharge at the upstream - side of the convex barrier and spouting it at the downstream - side
林秉南院士提出了兩種方案: 1 、吸、噴水方案,即在邊界(突出山體)的順水面將邊界層水流吸走,並在下游面噴水增加水流動量,以控制迴流尺度。Design procedure of u - shaped anti - rolling tank system is established, and program of scale design for tank is summarized, and an innovation selecting the natural frequency of controlled passive anti - rolling tank is put forward according to variation range of wave frequency, the natural frequency of rolling of a ship and other influencing factors, and causes of formation of tank damping and motion state of water in tank are studied, calculation formula of the u - tube tank damping and design method of tank damping configuration are given, and the influence of tank vertical location within the ship on ship parameters, stabilization performance of tank and water motion in tank is studied
建立了完整的u型減搖水艙系統設計程序;總結了u型減搖水艙尺度設計;提出了根據波浪頻率變化范圍、船舶固有頻率變化范圍和其它影響因素,選取可控被動式減搖水艙固有頻率的新方法;分析了u型減搖水艙阻尼的形成原因,給出了估算水艙阻尼和設計水艙阻尼結構的方法;研究了減搖水艙在船舶中的垂直位置布置對船舶參數、水艙減搖性能和艙內流體運動性能的影響。Before moving into the ocean, the low was colder on the low stratosphere, while into the ocean, the low was colder on the whole level below 200hpa
在入海前,對流層低層是冷心結構,中高層是暖心結構;而在人海后, 200hpa以下都是冷心結構,水平尺度迅速增大,變成高空冷渦。As a general rule, an adequately sized globe valve ( i. e. with pipe velocity between 15 to 25 ft / sec for water and 200 to 300 ft / sec for steam ) should not be throttled down below 35 % of its maximum full open cv capacity ( approximately 20 % of full stroke )
一般而言,通徑足夠大的截止閥(例如管道內水流速度在15至25英尺/秒之間,蒸汽流速在200至300英尺/秒之間) ,節流后的流量不應該小於完全開啟狀態流量(流量系數大約為全沖程的20 % )的35 %以下。分享友人