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临界剪切力
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  critical shear stress
     The study shows that the sediment yield from runoff shearing take on a good positive correlation with the average runoff shear stress, and the critical shear stress of the runoff, by which the soil grain can just be dispersed, is 0.258 N/m~2.
     研究表明,径流剪切产沙率和单位面积径流剪切力呈显著的正相关关系,土壤颗粒被分离的临界剪切力为0.258N/m2。
短句来源
     Results indicated that linear relationship was existed between average runoff shear stress and sediment yield, soil erodibility in the experiment was 178.5g/(Pa·min), and the critical shear stress value was 0.54 Pa.
     研究结果表明,坡面径流平均输沙率与坡面径流平均剪切力之间均存在明显的线性关系,试验的土壤抗蚀性参数为178 5g/(Pa·min),径流临界剪切力为0 54Pa。
短句来源
     Linear relationship existed between sediment transportation ratio and shear stress, and critical shear stress of the flow was (1.701) (N/(m~2·min)), consequently the critical flow depth for the occurrence of rill erosion had inverse ratio with the sine value of slope gradient.
     泥沙输移率与径流剪切力之间存在线性关系,径流临界剪切力为1.701N/(m2·min),发生细沟侵蚀的临界径流水深与坡度正弦值成反比。
短句来源
  critical shear stress value
     Results indicated that linear relationship was existed between average runoff shear stress and sediment yield, soil erodibility in the experiment was 178.5g/(Pa·min), and the critical shear stress value was 0.54 Pa.
     研究结果表明,坡面径流平均输沙率与坡面径流平均剪切力之间均存在明显的线性关系,试验的土壤抗蚀性参数为178 5g/(Pa·min),径流临界剪切力为0 54Pa。
短句来源
  “临界剪切力”译为未确定词的双语例句
     Corns planting in the soils treated with PAM were taller and more vigorous, with higher mass produced.
     土壤表面经PA M处理后,能大大提高土壤的临界剪切力
短句来源
     4. The relationships of runoff shear stress, the flow energy consume and the unit steam power with the sediment transport rate were found, and the critical dynamical condition of the soil erosion were studied.
     坡面径流剪切力与坡面径流输沙率之间存在明显的线性关系,试验条件下的土壤可蚀性参数为178.5g/Pa·min,发生径流侵蚀的临界剪切力为0.54Pa。
短句来源
  相似匹配句对
     (M, H)-Critical Matrices
     (M,H)-临界矩阵
短句来源
     At the same time, effects of slope degree and PAM coverage on the critical shear stresses were analyzed.
     分析了坡度、PAM覆盖度对土壤临界剪切力的影响。
短句来源
     THE GAUSS -CRITICAL SUBMANIFOLDS
     高斯临界子流形
短句来源
     Corns planting in the soils treated with PAM were taller and more vigorous, with higher mass produced.
     土壤表面经PA M处理后,能大大提高土壤的临界剪切力
短句来源
     THE BED SHEAR STRESS DISTRIBUTION CHANNEL BENDS
     弯道床面剪切力的分布
短句来源
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  critical shear stress
The shape and the critical dimensions of microvoids depending on the critical shear stress were found.
      
Adhesion strength of L929 and Hela B cells in term of critical shear stress of detachment in response to various concentrations of serum was measured.
      
The critical shear stress was also calculated for eleven boundaries with csl structure and found to roughly decrease with increasing twist angle.
      
Problems associated with the use of the nonstationary method of pulsed changing of the rate of shear for the measurement of important viscoplastic properties of whole blood - the critical shear stress τ0 and the plastic viscosity μp - are considered.
      
In the range of pH 6.3-7.6, the oversouring of blood mainly influences the critical shear stress, and the Caisson viscosity depends only weakly on the acid-base equilibrium.
      
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  critical shear stress value
This relaxation transition is characterized by a critical shear stress value invariant with respect to the molecular weight, molecularweight distribution and temperature.
      
in all cases decreased the critical shear stress value on average 0.8 Pa.
      
A critical shear stress value of 2.5 dyn/cm2 was measured in this last study with normal erythrocytes suspended in a saline solution of dextran 80.
      
This could be easily achieved by lowering the critical shear stress value to 106 Pa.
      


Considering the interaction between waves and soft muddy bed, a model for the calculation of wave shear stress on soft is presented in this paper. On the basis of the calculated results for wave shear stress, the critical shear stress for the initial entrainment of cohesive sediment on muddy bed with different densities by waves is investigated by flume tests. A formula of the critical shear stress for the initial entrainment of cohesive sediment on various density muddy beds by waves is obtained and compared...

Considering the interaction between waves and soft muddy bed, a model for the calculation of wave shear stress on soft is presented in this paper. On the basis of the calculated results for wave shear stress, the critical shear stress for the initial entrainment of cohesive sediment on muddy bed with different densities by waves is investigated by flume tests. A formula of the critical shear stress for the initial entrainment of cohesive sediment on various density muddy beds by waves is obtained and compared with the formula of the critical shear stress of cohesive sediment by currents.

本文考虑波浪与软泥床面相互作用,建立了计算软泥床面上波浪剪应力的理论模型.计算结果表明,床面运动对波浪床面剪应力的影响很大.对波浪作用下粘性泥沙悬扬进行了实验研究,得到了不同密度泥床粘性泥沙悬扬的临界剪切力与泥沙流变参数的关系,并与水流作用下粘性泥沙悬扬的结果进行了比较.

On the basis of scouring experiments indoors, the mechanism of the drop pit' genesis and development during the process of slope erosion is analyzed, and the relationship among headcut, bank landslip and downcut has been expounded. The variation regularity of the runoff and the sediment yield in each discharge was studied, and the relationship among the sediment, the runoff and the proportion of the rill area was obtained. Analyzing each erosion stress on the slope during the scouring, we get the runoff shearing...

On the basis of scouring experiments indoors, the mechanism of the drop pit' genesis and development during the process of slope erosion is analyzed, and the relationship among headcut, bank landslip and downcut has been expounded. The variation regularity of the runoff and the sediment yield in each discharge was studied, and the relationship among the sediment, the runoff and the proportion of the rill area was obtained. Analyzing each erosion stress on the slope during the scouring, we get the runoff shearing sediment equation. The study shows that the sediment yield from runoff shearing take on a good positive correlation with the average runoff shear stress, and the critical shear stress of the runoff, by which the soil grain can just be dispersed, is 0.258 N/m~2.

通过室内放水冲刷试验,分析了坡面侵蚀过程中跌坑产生与发育的机理,阐明了朔源侵蚀、边壁崩塌和细沟下切侵蚀之间的相互关系。研究了各放水流量下坡面产沙及细沟径流的变化规律,建立了坡面产沙量与细沟面积比例和流量关系。本文通过对冲刷过程中各侵蚀营力的分析,得到了径流剪切作用产沙方程。研究表明,径流剪切产沙率和单位面积径流剪切力呈显著的正相关关系,土壤颗粒被分离的临界剪切力为0.258N/m2。

In this research, soil erosion and sediment yield was calculated by runoff shear stress, runoff energy consumption and runoff power theory respectively. Results indicated that linear relationship was existed between average runoff shear stress and sediment yield, soil erodibility in the experiment was 178.5g/(Pa·min), and the critical shear stress value was 0.54 Pa. Results by energy consumption implied that there was also linear relation between sediment transportation and energy consumption of unit runoff...

In this research, soil erosion and sediment yield was calculated by runoff shear stress, runoff energy consumption and runoff power theory respectively. Results indicated that linear relationship was existed between average runoff shear stress and sediment yield, soil erodibility in the experiment was 178.5g/(Pa·min), and the critical shear stress value was 0.54 Pa. Results by energy consumption implied that there was also linear relation between sediment transportation and energy consumption of unit runoff width: Dr=14.61(ΔE-0.37), which indicated that soil erodibility was 14.61 g/J, with critical energy consumption of 0.37 J/(min·cm). Results by runoff power theory showed that sediment transportation increased with the increase of runoff power, and simple linear relation was also regressed: Y=8942.2x-68.676. Generally, these three theories showed its advantage in describing soil erosion process on slope, among which results from energy consumption theory was simpler and more accurate, and was more convenient in describing soil erosion on slope.

分别利用坡面径流剪切力、坡面径流能耗和坡面径流单位水流功率理论对坡面土壤侵蚀发生过程进行了研究。研究结果表明,坡面径流平均输沙率与坡面径流平均剪切力之间均存在明显的线性关系,试验的土壤抗蚀性参数为178 5g/(Pa·min),径流临界剪切力为0 54Pa。根据径流能耗理论的计算结果表明,径流单宽输沙率和单宽径流能耗之间具有如下的线性关系式:Dr=14 61(ΔE-0 37),表明试验的土壤可蚀性参数为14 61g/J,临界单宽径流能耗为0 37J/(min·cm)。根据径流功率理论的计算结果,坡面径流功率与径流平均输沙率之间存在比较明显的线性关系,随着径流功率的增加,坡面径流输沙量明显增加,二者的线性关系为:Y=8942 2x-68 676。总体来说,3种理论在土壤侵蚀研究中的应用各有优势,其中坡面径流能耗理论相对简便并且误差较小,更利于对坡面土壤侵蚀过程进行描述。

 
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