表面徑流 的英文怎麼說
中文拼音 [biǎomiànjìngliú]
表面徑流
英文
overland flow- 表 : Ⅰ名詞1 (外面;外表) outside; surface; external 2 (中表親戚) the relationship between the child...
- 面 : Ⅰ名詞1 (頭的前部; 臉) face 2 (物體的表面) surface; top 3 (外露的一層或正面) outside; the ri...
- 徑 : Ⅰ名詞1 (狹窄的道路; 小路) footpath; path; track 2 (達到目的的方法) way; means 3 (直徑的簡稱...
- 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...
- 表面 : surface; superficies; boundary; face; rind; sheet; skin; outside; appearance
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The common character is to change the solid interspace shape of surface soil to build the rainwater converge section ( afflux section ) and crop planting section and force the runoff of converge section flow to crop planting section together with the runoff of crop plant section for crop use
共同的特點是改變地表空間立體微地形下墊面建設匯流區(也叫集流區)和作物種植區,將匯流區的雨水徑流疊加匯集到種植區進行利用,既利用匯流區的來水,又利用集流區的雨水。Regard - ing the surface runoff mechanism, liang and xie 1, 2 presented a new surface runoff parameterization which dynamically represents both the horton and dunne runoff generation mechanisms within within a model grid cell together with a consideration of the subgrid - scale het - erogeneity, which can be applied to not only humid regions but also droughty regions as well 3, 4. regard - ing the soil water movement, xie et al. 5 developed an unsaturated flow numerical model based on the finite element method, and xie et al. 6 presented another numerical model to compute soil moisture and water flow flux together by means of a mixed finite element method
在地表徑流方面,文獻1 3發展了一種同時考慮蓄滿超滲產流機制及次網格非均勻性的新的徑流機制模型,並用其改進了陸面模式vic variable infiltration capacity中的徑流計算,該模型既適用於濕潤地區也適用於乾旱地區4 .在土壤水模型方面,文獻5採用有限元質量集中法發展了非飽和土壤水流的數值模型,文獻6則採用混合有限元法建立了非飽和土壤水分含量和通量計算的數值模型Through the special studies on impacts to atomizing and humidifying effect from such factors as the firing pin type, centrifugal structure, higher spraying pressure, less aperture, initial water temperature and original state of the air, some conclusions are obtained, such as : the centrifugal nozzle with firing pin type, high pressure and little aperture has bigger air eddy and atomizing angle. the spaying liquid has high velocity. the droplet is small, and the heat and mass transfer velocity is high
通過對撞針型結構、離心式結構、較高的噴水壓力、較小的噴嘴孔徑、噴水初溫及待加濕空氣初狀態對霧化加濕效果的作用原理的重點分析,得到:撞針型高壓小孔徑離心式噴嘴具有較大的空氣渦與霧化角,噴出的液體流速高、液滴小、水與空氣傳熱傳質速率高,撞針型結構提高了霧化加濕效率,高壓小孔徑的特點為霧化加濕提供了較大的能量,而噴水初溫的升高會減小水的粘性力和表面張力,從而優化加濕效果。At quasi - state stage, the depth and rad ius of laser pool have small changes, but the highest surface temperature and velocity of molten pool decease rapidly
在凝固準穩態階段,熔池熔深和半徑變化較小,但表面最高溫度、熔池流速急劇減小;凝固加速階段則反之。When soil antecedent condition is dry and the initial rainfall intensity is high, peak surface runoff also considerably lag behind that of rainfall, because of the formation of temporary relative impermeable top layer ; b ) surface runoff is controlled primarily by infiltration - excess runoff mechanism under unsaturated condition ; the major fraction of surface runoff are dominated by saturated infiltration - excess runoff response, only a small fraction by return flow mechanism when soil is saturated ; c ) subsurface flow is dominated by saturated runoff mechanism, and the duration of subsurface post the rainfall end is dependent upon rather the soil properties than the rainfall characteristics ; d ) subsurface flow intensity in cultivated soil layer ( 0 ~ 20cm ) is high up to 35mm / h when rainfall intensity is up to 120mm / h, indicating the existing of macropores and pipe flow in cultivated layer
2 )耕作制下紫色土的產流主要機制是: 1 )當雨前土壤含水量未達到飽和狀態時,表面產流起始時間有明顯滯后現象,這與紫色土的快吸水性和較多非毛管孔隙密切相關;當雨前土壤較乾燥,降雨初期雨強較大時,易形成臨時相對不透水表層,表面產流峰也有明顯滯后現象。 2 )表面徑流的產流方式主要是超滲產流,當土壤達到飽和狀態后,有四川大學博士學位論文小部分回歸流發生,但主要是飽和超滲產流發生,因為紫色土的相對不透水層和其它透水障礙層不明顯。 3 )壤中流主要是飽和產流,與降雨過程有明顯的滯后,而且雨停后的壤中流產流歷時與降雨特徵無關。Moreover, the resulted prediction model of foam size of the closed cell aluminum foam was verified by comparison to the experimental results from the foaming process at different foaming conditions, and the predicted bubble diameter is in good agreement with the experimental ones, the relative error distributes between - 5. 04 % and 6. 32 %
當入射空氣的壓強、氣流量,液面高度,出氣孔直徑增大時,氣泡直徑隨之增大;當出氣孔數量,液體粘度增大時,氣泡直徑減小,表面張力對氣泡直徑的影響可以忽略不計;靜態條件下液體表面氣泡直徑的預測值和實驗測量值符合得較好,相對誤差分佈在- 5 . 04 % ~ 6 . 32 %之間。Through examination of the recession limbs of the observed hydrographs, during periods with no rain and thus no surface runoff, one can determine the value of. for this catchment, a value of 0. 8 is obtained. the simulated subsurface runoff at each grid is routed to the outlets through a unit - hydrograph method for overland flow and the linear saint - venant equation for channel flow to get the discharge at xixian station
對所研究的流域而言,經過估算消退系數為0 . 8 .耦合著這兩種不同地下徑流機制的clm模型都可以計算出每個網格的地表地下徑流深,採用dag lohman 34 , 35發展的匯流模型進行匯流由於是研究地下徑流,所以取每個網格的地表徑流為0 ,該模型採用單位線計算坡面匯流線性聖維南saint - venant equation進行河道匯流Test results indicated : with the hoist of altitude, the increase of ice amount and the rise of pollutant, the average flashover voltage reduced. the character exponent generally depends on the insulator profile, ice amount, ice state and pollution severity etc. by means of a high - speed camera, a data acquisition system and high voltage test facilities, a series of the flashover processes on ice surfaces were record. the experimental results form this study and the subsequent theoretical analyses suggested : the thermal ionization of the air in front of an arc root resulted in arc movement ; the electrostatic force had an auxiliary effect of impelling arc propagation ; the electrical
通過對攝像機、數據採集系統及高壓試驗裝置記錄覆冰絕緣子表面閃絡電弧的發展過程的試驗結果進行理論分析得出:弧根周圍空氣的熱電離導致了電弧的發展,靜電場力對電弧的發展起到了加速作用,電擊穿僅發生在閃絡最終的跳躍階段;通過測量閃絡過程中的放電電壓、泄漏電流、閃絡時間、覆冰水電導率、電弧長度及電弧半徑等參數,得到了不同階段電弧(電弧起弧階段、電弧發展階段及完全閃絡)的發展速度、臨界電弧長度均隨覆冰水電導率的增加而減小。The results of sensitive experiments indicate that runoff will directly affect the change of soil moisture states, thus affect sensible and latent heat fluxes and other energy terms
並對耦合水文模型的陸面模式做了敏感性試驗,結果表明,陸面模式中徑流的描述合理與否,將8一對土壤溫濕及地表通量產生顯著影響。The common character is impound and infiltration use of rainfall runoff by changing the plane shape of surface soil. water infiltration area is the area of water use
共同的特點是通過改變地表平面微地形下墊面,就地攔蓄入滲利用降雨徑流,入滲區即為利用區。The results show that ( 1 ) the system of contour dams, contours and fallow had positive impact on water and soil losses than grass stripes and contour ditch. at the same time it was showed that contour dams, contours, fallow significantly reduced soil erosion and water loss, grass stripe and contour ditch had recorded reduction in water and soil losses although to a much less extent than above 3 farming systems. most of sediment was bed load in all the systems except in contour dams and contour fanning
研究的主要結論如下: 1 、運用坡面徑流小區法系統地研究了當地農業生產活動中不同農作措施下紅壤坡耕地水土流失特徵、土壤養分流失規律及形態特徵,結果表明: ( 1 )同順坡農作措施相比:其它農作措施均具有明顯減輕水土流失的作用,等高土埂,等高農作、休閑處理控制水土流失的效果優於水平草帶和水平溝處理。It analyzes the hydrologic effect from the aspects of rainfall interception of plants, splash erosion reduction and surface runoff control, analyzes the mechanical effect from the aspects of tensile strength of single root of plant, root - soil interaction, root - soil composite and slope stability and finally approaches to the future development orientation of slope protection by vegetation
從植物的截留降水、削弱濺蝕和抑制地表徑流等方面分析了植被護坡的水文效應,並從植物單根抗拉強度、根土相互作用、根土復合體及邊坡穩定分析等方面分析了植物護坡的力學效應,最後探討了植被護坡的發展方向。By monitoring the quality of the roof rainwater gathered in shanghai and analyzing the main influential factors as well as the pollution level, it is found that roof material, rainfall duration, rainfall intensity and volume are important influential factors affecting the quality of runoff from roofs
摘要通過對上海市屋面雨水水質監測,及對其污染主要影響因素與污染程度的分析表明,屋面材料、降雨歷時、降雨強度及降雨量等是屋面徑流雨水水質的重要影響因素。The results show that the precision of the model is well, but the influence to the precision of the model in the prediction of field runoff can ' t be ignored
分析結果表明,該模型應用於小面積徑流計算時精度很高,但在進行野外坡面徑流量的預測時,不能忽略控制面積的大幅擴大對模型預測精度的影響。Analyzed result on observed data shows that runoff erosivity and sediment transport modulus have a good power function ( y = mxn ) relationship. all the correlation coefficients of regression equation are bigger than 0. 9 in different watershed and power exponent b is 0. 4 - 0. 65, which average is 0. 52. and n is bigger as harness degree high
實際流域的觀測資料分析結果表明:徑流侵蝕力與輸沙模數之間有很好的冪函數( y = mx ~ n )關系,回歸方程相關系數均在0 . 9以上,關系式中冪指數n在0 . 4 - 0 . 65之間,平均為0 . 52 ,治理度越高, n值越大,而參數m與流域面積和治理度有關, m值隨著流域面積的增大和治理度的提高而減小。Research in the translocation and transformation of phosphorus in soil - water system is of importance to environmental p management and controlling the eutrophication. a series of experiments and investigations in this paper were conducted to study the changes of p pool by a long - term applying fertilizer p, the translocation and transformation of phosphorus between interface of soil and water in relation to their environmental effects, using the upland fields from yellow soil area of guizhou province
在貴州中部地區,通過對有代表性的黃壤旱地進行采樣分析和盆栽試驗,對其磷庫變化及其環境影響進行了研究,同時採用無界徑流小區試驗、野外坡面徑流小區試驗以及模擬降雨徑流試驗對坡旱地地表徑流中磷的含量水平、形態特徵、生物有效性、遷移規律、磷流失量及其影響因素進行了研究。The reason is that the quality and function of current forest can not match the natural primeval forest with perfect soil conservation effectiveness. because unitary surface material and less land surface roughness which can not retain runoff lead to short confluence time, quick delivery of flood, easy superposition of floods, and result to flood disaster
原因是目前的森林質量和功能都無法與具有水土保持功能的原始森林相比,其地表組成物質太少且單一,地面粗糙度低,起不到對地表徑流的阻擋作用,致使地面徑流匯流時間縮短,洪水下泄快並容易形成洪水疊加,導致洪澇災害加劇。Loading different shapes of slots in the patches of antennas will cut off the original surface current and the current has to flow around the slots that make its route longer. this course is equally satisfactory in result of inserting cascade inductances in the equivalent circuit of antenna
當在貼片表面開不同形式的槽或細縫時,切斷了原來的表面電流路徑,使電流繞槽邊曲折流過而路徑變長,在天線等效電路中相當于引入了級聯電感。The objectives of this study were : i ) to understand the mechanism of applying polyacrylamide ( pam ) to control crust formation, to increase infiltration and reduce soil erosion ; and ii ) to quantify the dynamics of soil erosion processes with rare earth elements ( ree ) tracers
本文的目的是研究利用聚丙烯酰胺( pam )作為土壤改良劑來抑制土壤表面結皮,增加降水入滲,減少土壤表面徑流,降低土壤侵蝕;同時採用稀土元素( ree )示蹤土壤侵蝕的動態過程,研究土壤侵蝕的動力學機理。4 ) numerical simulation running of surface runoff shows simulation results presented the general features of surface runoff generation, and certain efficiency. after adjusting the input parameters, the simulation results show a good meet to the observed data
4 )表面徑流的數值模擬能揭示表面產流的一般趨勢,而且有一定的有效性,通過調整模擬輸入參數,能使模擬達較理想程度。分享友人