泥沙流量 的英文怎麼說
中文拼音 [níshāliúliáng]
泥沙流量
英文
sediment discharge- 泥 : 泥名詞1 (含水的半固體狀的土) mud; mire 2 (像泥的東西) any paste like matter; mashed vegetable...
- 沙 : 沙動詞[方言] (搖動以清除雜物) shake
- 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...
- 量 : 量動1. (度量) measure 2. (估量) estimate; size up
- 泥沙 : [地] silt; sediment
- 流量 : rate of flow; flow; runoff; discharge; throughput; (flow) rate; quantity (of flow); flux
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Soil is the base of agriculture production, the key measure to prevent water and soil loss is to conserve soil, but most soil nutrient is lost with the sediment loss, and serious water and soil loss make the soil thickness degrease, the soil nutrient be deficient and lean, the land quality degrade and the yield of plant decrease, all this results is going to threaten the people ' s transplanting and the agriculture sustainable development, and restrict the economy development of three gorges regions
同時,土壤是農業生產的根本,治理水土流失的關鍵是要保住土壤,而土壤養分絕大部分是隨著泥沙流失的,嚴重的水土流失造成土層淺簿、養分貧瘠,土地質量退化,產量下降,對三峽庫區移民工作和農業可持續發展造成嚴重威脅,制約三峽庫區經濟發展。因此進行三峽庫區坡耕地土壤侵蝕機理研究,探索減輕坡耕地土壤流失的方法措施,具有全局性的重大意義。They do, however, grade into sorted and stratified sediments where higher water content has produced conditions transitional to turbid stream flow.
然而,在泥沙含量較大逐漸形成渾蝕流的地方它們也可變為分選和有層理的沉積物。Compared with measured data, this equation can describe the sediment concentration distribution better both in main flow region and near - bottom region
與實測資料對比表明,該公式能更好地描述包含主流區與近底流區在內的泥沙含量分佈規律。The study showed that n and p runoff concentrate in storm is higher that norm. with the cover level increasing and different utilization manners, losses of n and p nutrient showed notable divergence. ( 2 ) with the increasing of rainfall and rainfall intensity, losses amounts of runoff silt in fallow field, com field and orchard field showed rising, while was stable in grass field
黑土徑流泥沙流失量,總的趨勢是隨降雨量、降雨強度增加,休閑地、玉米地、果園的流失量有增加的趨勢,而草地泥沙流失量無增加的趨勢,基本衡定;徑流泥沙流失量及泥沙n 、 p流失隨植被覆蓋的增加而降低。Measurement of liquid flow in open channels - sediment transport - measurement of suspended sediment
明渠流量測量.第10部分:泥沙挾帶.第10b節:懸浮泥沙測量Hydrologists can benefit from this system. their work efficiency and hydrological instrument automation level are advanced greatly
此系統可幫助水文工作者更快、更準的獲取泥沙含量及流速數據,大大提高水文工作者的工作效率和水文測驗儀器的自動化水平。Finally the constitution, function, principle and application range of an automatic system for monitoring sediment with r ray and velocity of river flow is described in detail
本論文最後詳細闡述了射線河流泥沙含量和流速自動化監測系統的組成、功能、工作原理以及應用范圍。The repair and maintenance work of the turbine blades is the international problem for all the hydro power plant. a lot of manpower and resources is costed every year, especially in china, because the rivers contain plentiful sand, the problem is more serious
水輪機轉輪葉片的維修與維護一直是各國水電部門的一項重要工作,每年都要對其耗費巨大的人力、物力、財力,尤其是我國河流泥沙含量大,此項工作就更為艱巨。By introducing the diffusion caused by sediment colliding, the diffusion theory is revised, and the equation for sediment concentration distribution is derived from theory analysis
進而在引入顆粒碰撞擴散的基礎上,對泥沙顆粒擴散理論進行修正,從而在理論上得到了挾沙水流泥沙含量分佈規律的公式。Potassium lost by runoff was equal to that lost by bed load in fallow farming system, but in the systems with more sediment such as traditional farming system, grass stripe, and contour ditch potassium loss was mainly through bed load which accounte
08 ,泥砂流失量和有機碳流失量佔全年流失量的90以上。徑流量和泥沙流失量的大小順序均為無保護性措施、侵蝕嚴重的試驗區5 ( ck :對Aiming at the change of the traditional sediment measurement method, a new equipment, called infrared back - scattering sediment instrument, is introduced, it can measure the real - time sediment content continuously
為改進環形水槽的傳統測沙技術,自主研發完全開放式的實時在線測沙儀器,力求在水槽中實驗水樣的自然流態下實時測量垂線懸浮泥沙含量。Based on the analysis of characteristics of sediment particle concentration distribution, it is pointed out that the diffusion theory can describe sediment concentration distribution in main flow region but cannot explain sediment concentration distribution law near bottom because of the existence of sediment colliding shear stress
摘要在分析泥沙顆粒含量分佈特性的基礎上,指出擴散理論能較好地描述主流區的泥沙含量分佈規律,但在近底流區由於泥沙碰撞切應力的存在,使得擴散理論不能解釋此區域的泥沙含量分佈規律。Yellow river which is the second big river of china is famous to the world because of high content of bedload
黃河,是我國第二大河流,以泥沙含量高而聞名世界。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。Under the less flow discharge, the rainfall splash intensity did n ' t almost have a remarkable effect on the overland flow sediment contain, under the greater flow discharge, the overland flow sediment contain would increase with the rainfall splash intensity rose
當放水流量較小時,雨滴打擊強度對坡面流泥沙含量影響不明顯;當放水流量較大時,坡面流泥沙含量隨雨滴打擊強度的增加而增加。( 3 ) the farming systems which had a less degree of soil erosion and sedimentation, organic carbon was lost mainly through runoff but in farming systems in which soil erosion was serious such as in grass stripe, contour ditch, traditional farming system, the loss was through bed load. nitrogen loss through runoff was 81. 9 % - 93. 4 % of the total. this loss through runoff comprised 78 % - 87. 6 % dissolved nhvn and no " 3 - n although the former was slightly higher than latter as it made up 55. 14 % of the lost nitrogen
( 3 )侵蝕程度較輕,泥沙流失量較小,特別是推移質流失量較小的農作措施處理的徑流小區,如休閑處理、等高土埂和等高處理的小區中有機碳流失以徑流流失為主,相反,如水平草帶處理、水平溝處理和順坡農作處理的徑流小區中,有機碳流浙江大學博土學位論文失以推移質流失為主。The formula for computing sediment concentration is determined with mathematical method theoretically according to the attenuation law of y ray and characteristics of mixture of solid and liquid
本論文首先根據射線穿透物體過程中的衰減規律以及水沙液固兩相流的特性,用數學的方法從理論上推求了射線透射法計算泥沙含量的理論計算公式。( 3 ) the results of soil trough experiment and simulated rainfall experiment with a fixed intensity indicated that, the rainfall splash intensity had a remarkable effect on the overland flow sediment contain. during the single rainfall experiment, when the rainfall splash height was less than 5 meters, the overland flow sediment contain would add with the lower rainfall splash height increased ; when the rainfall splash height was more than 5 meters, it would drop with the higher rainfall splash height increased
( 3 )土槽試驗和定雨強模擬降雨試驗結果表明,雨滴打擊強度對坡面坡面流泥沙含量有顯著影響。單降雨實驗中,當降雨高度小於5m時,無論雨強大小,坡面流泥沙含量隨雨滴打擊強度的增加而增加;當降雨高度大於5m時,坡面流泥沙含量隨雨滴打擊強度的增加而降低。This paper tries to use the capacitive method to measure sediment concentration in flow - water and use the self - regulating capacitance sensor to carry experimentation in order to study a way and technology used to measure the sediment concentration in a nicety - speediness and on - line way
本研究嘗試著採用電容法測量水流泥沙含量,並用自行研製的電容式傳感器進行試驗,研究準確、快速、在線測量水流中泥沙含量的方法和技術。The quantity of material that goes into suspension depends on the fluid forces at the bed.
進入懸浮的泥沙數量取決于河床上的流體的作用力。分享友人