bed load 河床上被水流帶來的沙石等。
河床上被水流帶來的沙石等。 “bed“ 中文翻譯： n. 1.床，床鋪；床位，鋪；(動物的)窩；〔比喻〕安樂 ...“load“ 中文翻譯： n. 1.裝載，擔子；負擔；工作(負荷)量。 2.(車船 ...“acoustic bed load recorder“ 中文翻譯： 聲學自記推移質測定器“bed load by waves“ 中文翻譯： 牽引飄砂 掃流漂砂“bed load calibre“ 中文翻譯： 輸沙量“bed load deflecting sill“ 中文翻譯： 導沙底檻; 挑沙底檻“bed load deflection apron“ 中文翻譯： 挑沙護坦“bed load discharge“ 中文翻譯： 推移質輸沙量; 推移質輸沙率; 推移質輸送量“bed load discharge measurement“ 中文翻譯： 推移質輸沙率測驗“bed load feeder“ 中文翻譯： 推移質加沙器“bed load formula“ 中文翻譯： 推移質公式“bed load function“ 中文翻譯： 搬運速率“bed load intensity“ 中文翻譯： 推移質輸移強度“bed load measurement“ 中文翻譯： 推移質測定“bed load motion“ 中文翻譯： 推移質運動“bed load movement“ 中文翻譯： 推移質運動“bed load moving strip“ 中文翻譯： 推移質移動帶“bed load of pebbles“ 中文翻譯： 卵石推移質“bed load rate“ 中文翻譯： 推移質輸沙率“bed load sampler“ 中文翻譯： 底質采樣器; 推移質采樣器; 推移質取樣器“bed load sediment“ 中文翻譯： 推移質沉積物“bed load sweep“ 中文翻譯： 底沙橫向輸移“bed load transport“ 中文翻譯： 推移質輸移“bed load trap“ 中文翻譯： 底砂收集器; 推移質集沙槽“bed material load“ 中文翻譯： 床沙質; 底部物質負荷; 河床質; 推移質
( 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。 |
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bed maker |
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According to the theories of the energy dissipation of wave - water and sediment movement and based on the bottom sediment load formula developed by dou guoren , a formula to calculate the transport of the bottom sediment , which includes the bed load and part of suspended load , under the joint action of waves , tidal currents and wind - currents is derived 摘要根據波動水流能量及泥沙運動原理，參考了竇國仁推導底沙輸沙量的方法，推導出波浪、潮流和風吹流共同作用下的底沙輸沙量（包括推移質和部分懸移質輸沙）計算式。 |
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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征、土壤養分流失規律及形態特征，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于水平草帶和水平溝處理。 |
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Based on the topographic features and data of sediment particle size of bed load at the fluctuating backwater reach of liujiaxia reservoir , the streamwise variation and variation process of median diameter of bed load during silting and scouring periods of the fluctuating backwater reach are analyzed , and it can be seen that the turning point for the sediment diameter variation from coarse to fine is located at the outlet of shigou gorge of the fluctuating backwater reach 摘要根據劉家峽水庫變動回水區的河段地形特征和歷年河床質泥沙粒徑級配資料，分析了變動回水區河段淤積和沖刷時，河床質泥沙中值粒徑的沿程變化和歷年河床質泥沙中值粒徑變化過程，并指出粒徑分布由粗變細的轉折點在變動回水區寺溝峽峽口處。 |
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The theory of minimum entropy production or minimum rate of energy dissipation shows that a river is stable when it is in a relative equilibrium condition . ( 3 ) the river facies formulas of alluvial river have been developed using the theory of minimum rate of energy dissipation together with flow continuity and motion equations , suspended load transport or bed load transport equation . ( 4 ) the causes of the river patterns are explained using the theory of minimum rate of energy dissipation （ 3 ）基于最小能耗率原理，以水流能耗率作為目標函數，以水流連續方程、水流運動方程及懸移質挾沙力公式或推移質輸沙率公式作為約束條件，通過對目標函數求條件極值，分別推導出以懸移質造床為主的顯式河相關系式和以推移質造床為主的顯式河相關系式。 |
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( 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。 |
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The verification results show that the model can simulate well the tidal levels , current velocities , sediment concentration , bed load transport , diversion ratio in the bifurcation section , topographic change of the north and south channels , as well as sudden siltation caused by typhoons 大量實測資料驗證表明，該數學模型可以較好地模擬長江口地區的潮位、流速、流向、含沙量、底沙、分流比、南北槽地形變化和臺風暴潮造成的航道驟淤情況。 |
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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占全年流失量的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 |
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Suspended and bed load transport were simulated with a non - equilibrium method . the source treatments in sediment transport equations , suspended load carrying capacity of the non - uniform material and exchange of size - distribution of the bed material are presented . 5 二維懸沙和底沙運移采用不平衡輸沙模式，分析輸沙方程的源項處理以及非均勻沙分組挾沙能力和床沙級配調整。 |
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( 4 ) the percentage phosphorus loss by bed load was equivalent to mat lost as a result of runoff in traditional fanning practices , whereas in the rest of farming system the loss by runoff phosphorus was 67 . 59 % - 88 . 11 % （ 4 ）順坡農作處理的徑流小區通過椎移質流失的磷素和邁過徑流流失的磷素基本相當，其它處理的土壤磷素主要以徑流方式流失，其流失量占土壤全磷流失量67 |
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The scale effects due to unsimilar bed risistance is discussed in detail , and the correct way of scour depth is supposed . at last , a new transport rate formulas of uniform or nonuniform bed load is given 本文還對由于阻力不相似而引起的比尺效應進行了較詳細的討論，從理論上給出了沖刷深度比尺效應的修正方法及新的均勻、非均勻推移質輸沙率的計算公式。 |
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Based on the study of sediment transport under the actions of tidal currents and wind waves , a mathematical model of suspended load and bed load for yangtze estuary is developed 摘要通過對長江口徑流、潮流和波浪共同作用下的泥沙運動規律的研究，開發并建立了長江口全沙（懸沙和底沙）數學模型。 |
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The quantities of organic carbon and nitrogen in the bed load were high than in the runoff plots and this had a nutrient enrichment phenomenon 4 ，在徑流流失的氮素中又以水溶態氮素為主，約占徑流流失氮素的78 87 |
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Characterization of pressure signals in fluidized beds loaded with large particles using wigner distribution analysis : feasibility of diagnosis of agglomeration 基于魏格納分布的鼓泡流化床中結焦早期診斷 |
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In the bed load layer , the stream - wise particle velocity profile follows the log - law , and the average is 8 . 2u * 在推移區內，顆粒的縱向速度沿垂線接近對數分布，平均運動速度為8 |
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The deposition of bed load sediment was greatly reduced in the sump by adding a flushing gallery 通過在集水池底設置排沙廊道，較好地解決了推移質泥沙淤積問題。 |
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Technical standard for measurements of bed load and bed material in open channels 河流推移質泥沙及床沙.測驗規程 |
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Bed load particles move spasmodically, perhaps at long intervals, and are at rest on the stream bed most of the time . 推移質顆粒多半作間歇運動，而大部分時間則停歇在河床上。 |
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Aggrading streams heavily charged with bed load may fill their channels nearly to the top of the banks . 帶有大量推移質的堆積河流可以把河槽淤高到幾乎與岸頂齊平。 |