简要介绍了系统相似性度量中的非平权距离系数法，并将其应用于水文计算中相似流域的选择。
The paper briefly presents the method of uneven weight distance coefficient for the measurements of system similarity and introduces it to the choices of analogy basins in hydrologic calculation.
无资料地区设计洪水的区域频率分析包括选择相似流域组、估计指标洪水以及推求区域综合增长曲线和设计流域的洪水频率曲线。
Regional flood frequency analysis for un-gauged basins included selecting a pooling-group, estimating the index flood, deriving pooled growth curve and fitting flood frequency curve for tested basin.
区域频率分析能充分利用相似流域组的资料来扩充信息量，克服单站样本系列资料短缺的局限，解决无资料地区设计洪水的估算问题。
Regional flood frequency analysis is a useful approach method that avoids the shortness of at-site sample series and estimates design flood for un-gauged area.
从牙齿标本上检测到的花粉透露了这些啮齿动物应该曾经在热带雨林中生活过，其生活环境于今天乌卡利亚何流域的热带雨林极为相似。
Pollen found with the teeth indicates these rodents would have scurried around in a similar rainforest to the one that lines the modern Ucayali River.
场次洪水的相似性分析中，以时段内流域主控站平均流量和平均水位作为特征指标建立可拓评判模型。
In the similarity analysis of floods, the extension model is developed which takes the average water level and average flow of key stations as two characteristic indices.
分析和探讨了1966- 1995年6 ~9月西江流域16个暴雨洪涝个例，总结出相似的天气形势。
In this paper, 16 torrential rain and flood processes from June to September (1966-1995) were analyzed and similar weather situations were summarized.
产于中国大河的匙吻鲟与密西西比河流域中的相似。
Fish of larger rivers of China similar to the Mississippi paddlefish.
总的来看，三个小流域在相似自然和社会经济条件下以相同的治理模式下取得治理成效相差不大。
As a whole, harness result of three small watershed differs slightly at similar and society-economy condition with the same harness model.
湖北汉江流域中下游在自然条件上与田纳西流域有许多相似之处。
There are lots of similarities between the middle and lower reaches of the Han River and Tennessee Valley in natural conditions.
探讨与香溪河具有相似纬度、相似河流长度和流域面积，同为长江上游支流的九龙河和冈曲河的大型底栖动物的群落结构特征与香溪河的差异。
The three streams had similar latitude, river length and watershed area. All were the tributaries of the Yangtse River and located in the upstream areas.
地形指数空间变异特征分析可为研究流域地形和流域水文相似性提供基础资料。
The analysis of the topographic index variance can help us study catchment topography and hydrological similarity.
流域盆地的风化作用指数由北向南逐渐增加，这与世界上其它地区十分相似。
Also, the weathering indices which is a ratio of the stable to active elements, increases from the north to south, indicating the control of weathering on river chemistry.
流域盆地的风化作用指数由北向南逐渐增加，这与世界上其它地区十分相似。
Also, the weathering indices which is a ratio of the stable to active elements, increases from the north to south, indicating the control of weathering on river chemistry.
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