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下游
相关语句
  downstream side
    The maximum lifting height in the upstream side is 45 m and that in the downstream side is 101 m. The horizontal transportation distance is 140 m.
    上游侧最大提升高度45m,下游侧为102m,水平运距140m。
短句来源
    The discharge through the span nearest to the downstream side is about 15~20% larger than the average value.
    (3)斜交桥各孔通过的流量自上游向下游沿程增加,最下游桥孔通过的流量比平均值高出约15~20%。
短句来源
  “下游”译为未确定词的双语例句
    Study on Influence of Hadashan Hydro-junction Project on Navigation at Down-stream Reach of Fuyu
    哈达山枢纽调水对扶余下游河段航运影响初步研究
短句来源
    62. 0~73. 8m downstfeam.
    下游为620~73.8m。
短句来源
    and the valid size of single-step lock is 280 m×34 m×5 m (length×width×minimum water depth). The ship lock of the TGP is the largest shiplock with highest design total water head in the world. The water level changes range within 135–175 m in up-stream,and within 62.0–73.8 m in down-stream.
    三峡船闸采用双线五级连续型式,船闸规模大、水头高,闸室有效尺寸280m×34m×5m(长×宽×槛上最小水深),上游水位变幅135~175m,下游水位变幅62.0~73.8m,设计总水头113m,最大通航流量56700m3/s,可通行万吨级船队,是目前世界上规模最大、总设计水头最高的船闸。
短句来源
    Difference of wave velocity and the maximum wave velocity was defined as the segment viscosity factor. Segment viscosity resistance was in proportion to the length of the segment,flow grads along stream direction and segment viscosity factor. Based on the model,the relationships among traffic flow parameters were obtained.
    与流体力学对比,根据牛顿第二定律,提出了计算简便的交通压力、粘性阻力系数及粘性阻力,定义来自下游交通波的干扰为交通流的粘性,波速与最大波速之差为沿程粘性阻力系数,沿程粘性阻力与车道长度、流量沿车流方向的变化率、沿程粘性阻力系数成正比,模型能够得出交通流参数之间的关系。
短句来源
    Technical and Economical Analysis of Push-Train on Lower Changjiang River
    长江下游分节顶推船队技术经济分析
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  downstream side
The inviscid equations of motion for the flow at the downstream side of a curved shock are solved for the shock-normal derivatives.
      
During the diaphragm rupture, the system of oblique shock waves around the conical nose of the projectile was seen undisturbed on the downstream side of the diaphragm.
      
Complex secondary-flow patterns were observed, which carried particles along the downstream side of the feeding arms, but these did not appear to increase the area available for particle capture.
      
The location of capture shifted from the upstream to downstream side of the coral as flow speed increased.
      
Evidence of this was observed in 1940 by low values of the recovery temperature on the downstream side of a cylinder normal to a high velocity air stream.
      
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Bridges crossing mountainous streams are frequently built with circular piers and skew to the watercourse, The length of the bridge is usually not reduced by the approaching embankmemts and the degradation of the scour bed is comparatively small. Based upon the results of our hydraulic model studies and some of the field data, the characteristics of the backwater before the bridge and the creep height of the coming water upon the pier can be shown as follows:(1) The height of backwater decreases as the angle...

Bridges crossing mountainous streams are frequently built with circular piers and skew to the watercourse, The length of the bridge is usually not reduced by the approaching embankmemts and the degradation of the scour bed is comparatively small. Based upon the results of our hydraulic model studies and some of the field data, the characteristics of the backwater before the bridge and the creep height of the coming water upon the pier can be shown as follows:(1) The height of backwater decreases as the angle of skew increases. The design method used in current practices, not taking this point into account, will give erroneous results, especially when the angle of skew is large.(2) The value of creep height is far more than that of the backwater. It is an important characteristic parameter in bridge design, the value of which varies as the second power of the angle of skew, and its maximum value happens to be in the range of approximately 45°~55°(3) The discharge through one span (all spans are equal in length), increases as its location moves from the upstream side to the downstream side. The discharge through the span nearest to the downstream side is about 15~20% larger than the average value.(4) The skew bridge, the angle of skew of which is more than 50°, is not the most disadvantageous from the point of view of hydraulics.

本文根据水工模型试验资料及收集部分野外观测资料指出,对于山区河流,采用圆形桥墩,河床冲刷较小及河槽没有路堤压缩的情况,斜交桥前的壅水和墩前冲高具有如下的特点: (1)壅水值随斜交角度的增大而减小。因而现有的计算方法当斜交角度很大时将给出非常错误的结果。 (2)墩前冲高值远大于壅水值,是桥梁设计的重要参数。它随斜交角度成二次曲线的形式变化,最大值发生在45°~55°之间。 (3)斜交桥各孔通过的流量自上游向下游沿程增加,最下游桥孔通过的流量比平均值高出约15~20%。 (4)斜交角大于50°以上的斜交桥,从水力学的观点看,并非是最不利的。

In terms of the comprehensive economic index E of the river push-train, this paper derives the optimum matching relationship of the power of the pusher of the river push train to the barge tows. The authors are further discussing in the paper the influence of the variation in main factors of the cost structure on the scale and economy of the push-trains. After having carried out a technical and economical analysis on the push-trains of the lower Changjiang (Yangtse) River, the paper points out that it is not...

In terms of the comprehensive economic index E of the river push-train, this paper derives the optimum matching relationship of the power of the pusher of the river push train to the barge tows. The authors are further discussing in the paper the influence of the variation in main factors of the cost structure on the scale and economy of the push-trains. After having carried out a technical and economical analysis on the push-trains of the lower Changjiang (Yangtse) River, the paper points out that it is not economical to develop large-scale barge tows and high-powered pushers on the lower Changjiang River in the near future. It is reasonable to use the 2×4 push-train (of the 2000T integral barge) consisting of 1200-1800 horsepower pushers and the 2×2 push-train (of the 2000T integral barge) consisting of 540-1200 horsepower pushers.

本文由内河分节顶推船队的综合经济指标E,推导出内河分节顶推船队的推船功率与驳船队最佳匹配关系式,进而讨论了成本结构的主要因素的变化对分节顶推船队规模及经济性的影响,并通过对长江下游分节顶推船队的技术经济论证,指出长江下游近期内发展大型船队和大功率推船是不经济的;合理的分节顶推船队应该采用2000吨驳型、1200~1800马力推船所组成的2 x 4船队以及2000驳型和540~1200马力推船所组成的2×2船队。

By analysing and calculating more than twenty thousand push-train schemes for the three courses of the lower Changjiang River (the Yangtse River), this article explains that the structure of the transportation cost is one of the decisive factors for determination of both the pusber power and the scale of the barge tows. The authors point out that in the near future the use of 540-1200 horsepower pusher and 2000 T integral barge on the lower Changjiang River could achieve the best economic effect.

本文通过对长江下游三条航线的两万余个分节顶推船队方案的论证计算及分析,阐明了船队运输成本结构是确定推船功率和驳船队大小、船队经济航速的决定性因素之一,指出长江下游在近期内,采用540~1,800马力的推船和2,000吨级分节驳具有最好的经济效果。

 
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