河床類型 的英文怎麼說

中文拼音 [héchuánglèixíng]
河床類型 英文
river channel pattern
  • 河 : 1 （天然的和人工的大水道） river 2 （指銀河系） the milky way system; the galaxy 3 （特指黃河） t...
  • 床 : i 名1 （供人睡覺的傢具） bed; couch 2 （像床的器具、地面） something shaped like a bed Ⅱ量詞（用...
  • 類 : Ⅰ名1 （許多相似或相同的事物的綜合; 種類） class; category; kind; type 2 （姓氏） a surname Ⅱ動詞...
  • 河床 : riverbed; bed; poised river; [英方] waterstead; cauce
  • 類型 : type; mold; form; cut類型論 theory of types; 類型語句 [計算機] type statements
  1. 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。
  2. Bed material samplers, as first developed, may be divided into three types.

    最初的河床質取樣器有三種類型。
  3. The sediments of the incised valleys show an upward - fining succession, and can be grouped into four sedimentary fades : gravel lag - deposit of in - channel to partly over bank sediments of a meandering river, flood plain - estuary, estuary - shallow marine, and estuary sand bar, based on lithology, paleontology, and sedimentary textures and structures

    根據巖石學、沉積結構和沉積構造特徵，本區下切河谷充填沉積物具有向上變細的沉積層序，可以劃分為4個沉積相類型：河床滯留沉積物到部分曲流河沉積體系的邊灘沉積、河漫灘河口灣沉積、河口灣淺海沉積和河口灣砂壩沉積。
  4. Although joint spacing is an important index in rock mass structure classification, it ca n ' t be obtained in some regions such as riverbed, so the practicability of using those indexes which characterizing the integrity degree of rock mass to class the rock mass structure is studied, and good coincidence is shown in rock mass structure classification by joint spacing, integrity coefficient and number of joints in dam abutment

    本文研究了用表徵巖體完整程度的指標?完整性系數、 rqd及5m洞段節理條數j _ d （與體積節理數類似）劃分巖體結構類型的可行性。對兩岸壩肩部位，節理間距、完整性系數、 5m洞段節理條數這三項指標劃分的巖體結構類型基本一致；河床壩基部位主要用rqd指標來判斷巖體結構類型。
  5. And there are three parfacies - - delta plain, delta front and prodelta and eleven microfacies which are distributary channel, channel bar, marginal bank ( point bar ) and so on. the text also discuss the sedimentary characteristic and cross section structure of every microfacies

    識別出三角洲平原、三角洲前緣和前三角洲3個亞相及分流河道河床、心灘、邊灘等11個微相類型，並對各微相類型的沉積特徵和剖面結構進行了討論。
  6. Since the movement of flows and boundary conditions of the natural rivers with too many variables are extremely complicated, it is unable to reveal the behaviors by using of the present theories and experience in this area. the river hydraulic experiments are playing important roles to solve these problems

    由於天然河道水流及河床邊界變化極其復雜，且相關變量太多，很多問題非現有理論所能描述，也難根據以往經驗得到解決，因此河道水力模型試驗就成為解決這類復雜問題的重要手段。
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