下游河段 meaning in Chinese
downstream reach
lower basin
lower course
lower pond
lower pool
lower reaches
tail bay lower reach
tail pond
tailpond
Examples
- In the upper reach the bed was dune covered and in the lower reach it was flat .
上游河段的床面为沙垄所覆盖，而下游河段则为平整床面。 - Study on method of calculating designed lowest navigable stage at downstream stretch of hydro - junction
水利枢纽下游河段设计最低通航水位推算方法探讨 - China marine oil spill contingency plan is now in the process of improvement . the inland waterway oil spill is another important area remain to be explored in term of increasing accident rate and booming shipping amount in yang tzi river . the need for inland waterway oil spill contingency plan is imperative . at strategic level , this paper compares several existing oil spill risk analysis methods including " historical date analysis " and " comparative risk indexes " , pointing out limitation of them , and then apply the " comparative risk indexes " approach to " river segment " spill risk analysis , developing " river segment oil spill comparative risk assessment framework " this paper also take new approach to collision and grounding in river by stochastic modeling tanker traffic in narrow waterway
本文在内河溢油反应战略规划层次上，分析现有的溢油风险评估方法，包括历史数据统计法和比较风险评估法，指出相关方法的适用性和局限性；基于长江下游水道采用“区段”和“河段”双层评估的思路，提出“长江下游河段比较溢油风险评估模式” ；将马尔科夫状态转移的思想应用到船舶运动描述中，从随机过程角度分析船舶在水道中的运行和事故发生，得出船舶事故概率计算模型。 - Through the statistics and analysis of runoff and amount of sand lost in the downstream of weihe in recent years , it is discovered that in the downstream of weihe the magnitude sand season was ahead of the main flood season relatively within the year ; variation tendency of annual runoff and amount of sand lost was identical basically , and the quantity of water and sand at huaxian gauging station was tailing - off continuously from the 1960 to 2005 ; there was direct relation between the situation of rushing or silting deposits and rainfall at this section of the river : the river depositing in the year which is rich rainfall , the eroding in the poor rainfall
摘要本文通过对近6年渭河下游水沙量数据的统计和分析得出，渭河下游河段年内多沙期较河流主汛期有所提前；年径流量和年输沙量的变化趋势基本一致，而且自60年代至2005年华县站的水沙量持续呈递减趋势；河流的冲淤情况与该河段的降雨量有着直接的关系，当年平均降雨量小的时候河流以淤积为主，当年平均降雨量大的时候河流以冲蚀为主。