high flood level 中文意思是什麼
high flood level
解釋
高洪水位-
At first, this paper analyzes the factors of water - sand influencing water level of yellow river and the feasibility just using the factors of water - sand to study water level, and collects the corresponding data ; secondly, because there are strong nonlinear relation in the corresponding data, by meticulous theory analysis, this paper integrates basic nonlinear analysis method, theory of random analysis, method of least squares and so on. it puts forward a method which can get the high accuracy simulation of the data, perfects the multi - factor analysis of variable ( over three factors ) of the statistic ; thirdly, it applies the method to the approximation of corresponding water level process which belong to the capacity of sand of middle - high and middle - low, and get the high - accuracy simulation about the typical nonlinear relation ; at last, this paper definitudes the main influence mode that the capacity of sand. it mainly unite with other factors to work on the water level in the yellow river lower reaches ; mor eover, this paper analyzes the difficult point and the direction of improvement to realize the accuracy forecasting of the flood level of erodible - bed channel
首先，系統分析了影響黃河水位的水沙因素，及僅用水沙因素有效研究水位的可行性，並按變量對應思想採集它們的相應數據；其次，由於相應水位過程數據中含極強的非線性關系，本論文經細致的理論分析，將基本的非線性分析方法、統計建模方法、隨機分析理論、最小均方誤差原則等等數學理論及方法有機揉合，提出了能有效實現這類數據高精度擬合的分層篩選法，並改進了統計學中多因子（三個以上）方差分析法；再次，將這一方法用於黃河中高及中低含沙類洪水相應水位過程的擬合，實現了這一典型非線性關系的高精度擬合，各年汛期上下游相應洪水位過程的擬合誤差都較小；最後，明確黃河下游含沙量對水位的主要影響方式，即含沙量主要是與其它因素聯合對水位作用；另外分析了要實現變動河床洪水位過程準確預報的困難所在及改進方向。 -
The wushan bank of three gorges reservoir has been divided into floodplain section, changing section from high level to below level and above flood level section
針對水庫庫岸再造預測的特點，將三峽庫區巫山縣段的巖質庫岸劃分為漫灘段、枯洪水位變幅帶、常見洪水位以上段3種類型。 -
Soil embankment is widely used in water conservancy and flood prevention projects because of its being able to drawing on local resources and other advantages. how to analyze and calculate the seepage and stabilities of levees under high level flood reasonably, and supply reliable technological support for dangers removing and strengthening are of great engineering significances
土質堤防因具有能就地取材等優點而為水利及防洪工程廣泛採用，合理分析與計算高洪水位作用下堤防的滲流及穩定性、為除險加固提供技術支撐具有重要的工程實際意義。 -
These mean images reveal not only the synoptic cloud systems but also the mesoscale convective cloud cluster. the long - term high water level of mid - yangtze river and the frequent flood peak of the upper yangtze river from the middle of june to the middle of august in 1998 was caused by the high frequent activity of convection
旬月和季平均雲圖表明，長江上游從6月中旬開始到8月中旬長達兩個多月對流的頻繁發生是「 98洪水」長江上游洪峰多，中游高水位維持時間長的重要原因。 -
On the basis of the analysis on the yangtze vole ' s disaster history and condition in dongting lake area, the influence of the lake beach ' s environmental evolution on the vole disaster is studicd in this paper. the rise of low - middle - level beach area causes the vole ' s population explosion, the reduction of high - level beach area forces the voles into the farmland during the flood season, and the emergence period ' s continual increase extends the vole ' s habitat areas and forces them to migrate into the farmland. the discarded dike provides a rest place halfway for the voles, which escape the flood, and the natural enemies of the voles, which are a natural barrier against the vole ' s population expansion, decreases. according to this study, the conclusions are put for ward as follows : after three - gorge project ' s construction it will produce great influences on the beach evolution in dongting lake area, leading to the changes of the vole ' s ecological environment situation and resulting in the vole ' s population changes which deserves attention
在分析洞庭湖區東方田鼠暴發成災史及災情的基礎上，研究了洞庭湖區洲灘演變對東方田鼠暴發成災的影響.研究認為，中低位洲灘出露面積不斷增大使東方田鼠種群迅速膨脹，高位洲灘出露面積減小造成汛期東方田鼠大量向垸內農田遷移;湖區洲灘冬春季連續出露天數增加延長了東方田鼠的繁殖期;汛期洪峰水位增高，洲灘大面積淹沒迫使東方田鼠大量遷向垸內;湖內廢棄湖堤為東方田鼠逃避洪水提供了中途休養之地;洲灘地抑制東方田鼠種群膨脹的天敵數量已大大減少.據此，本文指出，三峽工程建成后將對洞庭湖區洲灘演變產生重大影響，因而將改變東方田鼠種群生態環境條件，引起種群動態變化，值得注意 -
The analysis result shows that the shear - slipping collapse of high arch dam is caused by the flood of high water level and strong surging force resulted from upstream dam bursting and large - scale mountain land - slide
研究表明，上游潰壩和大面積山體滑坡等產生的高水位、強沖力的洪水是造成高拱壩剪滑垮壩的原因。 -
Flood in china has several characteristics as follows : the distributing area is far and wide, the frequency is high, the relationship between " flood " and " waterlog " is severe, the duration time of high water level in the river is enlarged and the losses is huge
我國的洪水災害具有分佈范圍廣、發生頻繁、防洪和排澇矛盾突出、河道高水位行洪歷時長、水災損失大、受洪水威脅人口多等特點。
分享友人