backwater level 中文意思是什麼

backwater level 解釋
回水高程
  • backwater : n （被阻退回的）回水，迴流；逆流；循環水，再用水；死水，滯水；〈比喻〉停滯；文化落後的地方（live ...
  • level : n 1 水平儀，水準儀；水準測量。2 水平線，水平面；水平狀態；平面，平地。3 水平，水準；水位；標準；...
  1. In regulation works of mountainous channel, determination of designed lowest navigable water level of reach with fluctuating backwater area is a common problem

    摘要變動回水區河段設計最低通航水位確定是目前山區航道整治工程中經常遇到的問題。
  2. Taking the reach with fluctuating backwater area in jiaokou hydroplant in xiujiang river, guanxi zhuang autonomous region for instance, this paper analyzes the water - sediment characteristics of the fluctuating backwater area, calculates the design level of this reach with samples of level and discharge, etc., and propounds the determination method for the designed lowest navigable level of reach with fluctuating backwater area

    以廣西繡江交口電站的變動回水區河段為例，分析了變動回水區的水沙特性，分別利用水位、流量樣本及不同方法計算與分析本河段的設計水位，提出了變動回水區河段設計最低通航水位的確定方法。
  3. Qualitative analysis on the effect of flood control and engineering safety -, seizing lots of water conservancy effective adjust storage. then making water level risen and reservoir backwater enlarged in the same flow level ? effect on beach and the buildings across river, soil salinization caused by flow from a lower to a higher place and unsmooth groundwater drainage destroy of travel resource caused by disorder enclose tideland for cultivation in reservoir silt up flood plain are given, then presents enclose tideland for cultivation dyke is important cause which water level rise in reservoir

    本文從青銅峽水庫泥沙淤積入手，分析水庫泥沙淤積特性和庫區圍墾堤開發利用淤積灘地的現狀，對防洪安全及工程安全的影響、侵佔大量的有效調蓄庫容、造成同級流量下水庫水位抬升水庫回水上延、對沿岸及過河建築構成影響、因水位抬升致使庫區周邊灌區地下水排水不暢乃至倒灌而造成土地鹽堿化、對水庫庫區大量淤積灘地無序圍墾造成旅遊資源破壞等五方面影響的定性分析，提出庫區圍墾堤是水庫水位抬升的重要原因。
  4. By comparing and analyzing the measured water level, three - dimensional velocity distribution and turbulent character around the bridge location, the calculation method for the backwater of skew bridges is improved and the reduction factor of block water width is presented

    通過對橋位附近的實測水位與水流三維流速分佈及紊動特性的比較分析，改進了計算斜交橋壅水的方法，並給出阻水寬度折算系數。
  5. Eutrophic investigation and assessment on backwater reaches of several typical branches of three gorges reservoir at 135m water level

    水位蓄水典型次級河流回水段富營養化監測評價
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