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单宽
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  unit width
    The Dachaoshan hydropower project has adopted the flaring pier stepped dam face and bucket combined energy dissipator in its design, and the prototype observation of overflowing hydraulics under the design water level was carried out in June, 2002. The streamwise pressure, bottom flow velocity and aeration over the 4 steps along the stepped dam face were measured, and the data on operations under a dam height of over 100m and a per unit width discharge of 165m3/s were obtained.
    大朝山水电站采用宽尾墩阶梯式坝面及戽式联合消能工的设计,于2002年6月进行了设计水位下的过流水力学原型观测,针对阶梯式坝面开展了沿程4个台阶上的压力、底流速和掺所的量测,取得了在100m级高坝、单宽流量165m3/s·m条件下的运行资料。
短句来源
    Based on the hydrological and sediment observations data in the Changjiang Estuary during the dry and flood seasons of 2003 and 2004, analyzed and discussed the temporal and spatial distribution characteristics of hydrodynamic suspended sediment concentrations (SSC). And did further unit width sediment discharge calculation to analyze its characteristics.
    本文基于2003年和2004年洪枯季长江口水文、泥沙观测资料,分析讨论了长江口水动力和悬移质含沙量的时空分布特征,并结合流速和含沙量资料,进一步尝试计算分析了长江口单宽输沙量特征。
短句来源
    In this paper are suggested three design criteria of energy dissipation, i.e. rate of energy dissipation, ratio of max. discharge per unit width at downstream end of apron to that just at gate section and the vertical velocity distribution factor.
    本文建议供设计时采用的三个消能指标:消能率,闸门开启时护坦下游端的最大单宽流量与闸孔最大单宽流量之比,垂直流速分布系数。
短句来源
    And finally, the relation between gravel bed load transport rate per unit width of the river and stream power per unit area on the bed has been obtained from the field data of the Tiziyan Station of Qiyi River.
    最后根据青衣江梯子岩站的实测资料,得到了卵石推移质单宽输沙率与单位面积水流功率的关系.
短句来源
    The estimation example shows that on layer surface seepage discharge per unit width is approximates to measured value.
    实例计算表明,层面的渗流单宽流量计算值和实测值很相近。
短句来源
更多       
  per unit width
    The Dachaoshan hydropower project has adopted the flaring pier stepped dam face and bucket combined energy dissipator in its design, and the prototype observation of overflowing hydraulics under the design water level was carried out in June, 2002. The streamwise pressure, bottom flow velocity and aeration over the 4 steps along the stepped dam face were measured, and the data on operations under a dam height of over 100m and a per unit width discharge of 165m3/s were obtained.
    大朝山水电站采用宽尾墩阶梯式坝面及戽式联合消能工的设计,于2002年6月进行了设计水位下的过流水力学原型观测,针对阶梯式坝面开展了沿程4个台阶上的压力、底流速和掺所的量测,取得了在100m级高坝、单宽流量165m3/s·m条件下的运行资料。
短句来源
    In this paper are suggested three design criteria of energy dissipation, i.e. rate of energy dissipation, ratio of max. discharge per unit width at downstream end of apron to that just at gate section and the vertical velocity distribution factor.
    本文建议供设计时采用的三个消能指标:消能率,闸门开启时护坦下游端的最大单宽流量与闸孔最大单宽流量之比,垂直流速分布系数。
短句来源
    And finally, the relation between gravel bed load transport rate per unit width of the river and stream power per unit area on the bed has been obtained from the field data of the Tiziyan Station of Qiyi River.
    最后根据青衣江梯子岩站的实测资料,得到了卵石推移质单宽输沙率与单位面积水流功率的关系.
短句来源
    The estimation example shows that on layer surface seepage discharge per unit width is approximates to measured value.
    实例计算表明,层面的渗流单宽流量计算值和实测值很相近。
短句来源
    In this paper,the joint energy dissipation mechanism of stilling basin and dental kaffle pier is analysed according to additional momentum hydraulic jump theory. The economic benifits of newly additional energy dissipation facilities are estimated in terms of the decreased percentage of the conjugate depth of hydraulic jump and length of jump or the volume of hydraulic jump per unit width.
    用“附加动量”水跃理论分析齿墩与消力池联合应用的消能机理 ,用跃后水深、水跃长度或单宽水跃容积减少的百分数 ,估计新增消能设施的经济效益。
短句来源
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  “单宽”译为未确定词的双语例句
    2. Connecting to the need of certain engineering, a new form of energy dissipation, named Multi-Horizontal Submerged Jets, which based on the energy dissipation mechanism of spatial 3D hydraulic jump and multi-jets trajectory flowbucket, are put forward.
    2、结合工程实际需要,提出了基于空间三元水跃消能机理和挑流多股淹没射流消能机理的多股多层水平淹没射流消能形式。 多股多层水平淹没射流是将高流速、大单宽水流沿横向和垂向分成多股、多层射流,进入消力池水体的中部。
短句来源
    By testing, the author has verified the calculation methon method proposed in the article "The Spread of Rapid Flow on the Surface of the Circular Arc" and advanced the relations of the maximum discharge per meter on the end of the bucket with factors of φ, H/R, b/R, F.
    本文对"圆弧曲面上急流的扩散"一文中提出的计算方法进行了试验的验证,提出了在挑坎末端最大单宽流量值与φ、H/R、b/R、F的关系.
短句来源
    Because of the construction of high head, large discharge hydraulic projects, a new problem has arised: how to solve the energy dissipation problem of the hydraulic engineering whose unit discharge is large and the total width of the spillway is limited.
    我国高水头大流量工程的兴建给我们提出一个新的课题:如何有效地解决泄洪前沿宽度有限、单宽流量较大的水电工程的泄洪消能问题。
短句来源
    Finally the formula of unit sediment rate of density flow in Xiaolangdi Reservoir has been pointed out and the data of other reservoirs has been verified.
    最后,给出了小浪底水库异重流单宽输沙率公式,并得到其它水库资料验证。
短句来源
    The coarser the resolution of DEM, the more the loss of information in topographical parameters. Also TOPMODEL behaves badly as the resolution of DEM becomes coarse.
    对单宽上坡集水面积引入分辨率因子,对地面坡度引入分形的方法,得到不受DEM分辨率影响的地形指数,进而得到不受DEM分辨率影响的TOPMODEL。
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  unit width
Application of the maximum width of the grid and flow rate per unit width of the river results in the number of flow zones in the lateral direction of the river.
      
The peel strength is the first peak force per unit width of bondline required to produce progressive separation, and the peel energy is the amount of energy per unit bonding area associated with a crack opening.
      
Estimates of cross-reef mass transport per unit width ranged from 0.058 to 0.032?m2s?-1.
      
In the strip packing problem (a standard version of the two-dimensional cutting stock problem), the goal is to pack a given set of rectangles into a vertical strip of unit width so as to minimize the total height of the strip needed.
      
It is shown that any plane set of constant unit width contains a semi-circle of radius 1/2, and using this a minimal univeral plane cover is explicitly constructed.
      
更多          
  per unit width
Application of the maximum width of the grid and flow rate per unit width of the river results in the number of flow zones in the lateral direction of the river.
      
The peel strength is the first peak force per unit width of bondline required to produce progressive separation, and the peel energy is the amount of energy per unit bonding area associated with a crack opening.
      
Estimates of cross-reef mass transport per unit width ranged from 0.058 to 0.032?m2s?-1.
      
The intrinsic force per unit width, S, in thin films of Ag, Al, ZnS and LiF prepared by vacuum evaporation at pressures of less than 5×10-5 Torr, has been investigated using a sensitive bending plate technique with capacitative detection.
      
Measurement of contact angles for the flowing beads and for sessile drops led to the conclusion that the surface tension forces per unit width were similar for the drops on the two surfaces.
      
更多          


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本文首先說明坡面径流研究的重要性。其次对于各种坡面流速公式,以及集流时間及退水时間公式作一簡单概述。文中对人工降雨坡面径流专門試驗給出簡要的描述。对于这些試驗結果进行經驗整理,得到下列形式的坡面流速公式: v=(K_q)~(1/2)I~(1/3)式中:v——断面平均流速(厘米/秒);I——坡面的坡度;q——单寬(1米)流量(升/分钟);K——系数,草地为3.0,光地为7.5。至于坡面集流时間,則因按稳定流或不稳定流計算而异。試驗表明,稳定流坡面集流时間对坡面洪峯传播时間(不稳定流)之比約等于2。文中对坡面退水时間理論公式与試驗数据进行厂比較,发現理論公式計算結果偏小,并提出了坡面退水时間經驗公式。

Applying the laboratory test data obtained by J. W. Holl and D. Colgate, this paper tries to estimate the required control of surface irregularities for high overflow dams so as to avoid the incipiency of cavitation damage. By plotting the prototype observation data of five overflow dams, an empirical equation of the velocity coefficient φ as a function of H/q~(2/3) is first established. Thereby, with given H and q, the various valuesof the surface shooting flow for the non-aerated case, such as depth, mean...

Applying the laboratory test data obtained by J. W. Holl and D. Colgate, this paper tries to estimate the required control of surface irregularities for high overflow dams so as to avoid the incipiency of cavitation damage. By plotting the prototype observation data of five overflow dams, an empirical equation of the velocity coefficient φ as a function of H/q~(2/3) is first established. Thereby, with given H and q, the various valuesof the surface shooting flow for the non-aerated case, such as depth, mean velocity,Froude number, and cavitation index may be determined. The experimental data given by Colgate have been analysed and the cavitationindices of the two test specimens have been calculated. The four “σ_i~△/δ” chartsas given by Holl are put into a single diagram, in which the results of Colgate are alsoincorporated. Based upon the prototype observation data of the Norris Dam, Glennmaggie Dam, nd Werribee Weir, an empirical equation for the boundary layer thickness is established, and a comparison of the equation with those given by W. J. Bauer—V. T. Chow and G. Halbronn is made. With the diagrams and equations so obtained, the incipient cavitation index and the corresponding allowable maximum surface irregularities can be estimated. In the final part of the paper, the limit of the cavitation index has been suggested below which special treatment of the concrete surface such as used in the Hungry Horse Dam should be adopted.

本文对于迫切需要解决的溢流高坝避免发生室穴現象的問題,根据現有室內試驗及原型观測資料,进行了初步估算。首先綜合了赫尔(J.W.Holl)及柯尔盖脫(D.Colgate)的室內空穴試驗資料。其次根据五个工程的原型观測資料,得出流速系数φ与H/q~(2/3)的經驗关系,从而可依次求得不掺气射流水深d、平均流速v、傅汝德数F、泄洪空穴数σ与H、q的关系。再次,根据三个工程的观測資料,得出估算边界层厚度的經驗公式,与鮑尔(W.J.Bauer)——周文德公式及哈尔勃龙(G.Halbronn)公式进行此較。綜合运用上述資料,可将溢流高坝的泄洪空穴数σ和不平整度△发生联系,估算坝面的平整度要求或单寬流量的限制值。最后,对于混凝土溢流面参考餓馬(Hungry Horse)坝隧洞衬砌进行特殊处理的空穴数界限,提出了初步意見。

~~

本文主要內容为通过試驗研究,对于高速水流在鼻坎上自由挑射射程問題,进行下列問題的探討: 1.影响水流自由挑射射程的主要因素; 2.造成挑流最大射程的鼻坎条件和任意射程的估算方法。由試驗研究初步成果証明:高速水流在鼻坎上自由挑射射程远近与挑射角度和半径都有密切关系。特別在单寬流量較大(当其他条件一定)时,鼻坎段的角度和半径的恰当配合,对于射程远近具有决定性作用。針对这一問題,本文提出了初步設計挑流鼻坎角度和半径的新方法、和估算射程的簡便經驗公式。

 
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