cross section of river 中文意思是什麼

cross section of river 解釋
河玲斷面
  • cross : n 1 十字架；〈the C 〉 耶穌受刑的十字架。2 〈the C 〉 基督教（教義，國家）。3 不幸，苦難；挫折，...
  • section : n 1 （外科、解剖的）切斷；切割；切開。2 【外科】切片，【金相】磨石。3 （果子的）瓣。4 【數學】截...
  • of : OF ＝Old French 古法語。
  • river : n 1 河，江。 Rriver Thames 或 the R Thames 泰晤士河； the Hudson R 〈美國〉哈得孫河。 the Rriver ...
  1. Fluid noise mainly comes from out put pulsation of rate of flow, the main reason of out put pulsation of rate of flow is the instant high pressure return flow that obturation cubage produced when the big round curve pressure transition. the v trough on the port plate can reduce the fluid noise. in this paper, the author based on the acting of dam a river and condensability of liquid and used matlab language as tool to calculate the v trough on the original port plate and drew out the p - t diagrammatic curve and analyzed its shortcoming and improved the design of original v trough and got that the best size of its angle was 12. 3 and its length was 5mm and the cross section was an equilateral triangle

    流體噪聲主要來源於輸出流量脈動，造成輸出流量脈動的主要原因是閉死容積在大圓弧段壓力切換時產生的瞬時高壓迴流，在配流盤上開設v型尖槽可降低因高壓迴流而引起的流體噪聲，本文以截流作用和液體的可壓縮性為理論依據，以matlab語言為工具，對原配流盤上的v型尖槽進行了理論計算，繪制出p - t圖線，分析了它的不足，並對原有v型尖槽進行了優化設計，得出了v型尖槽的最佳幾何尺寸：配流盤平面上的v型尖槽的兩邊的夾角為12 . 3 ，槽長5mm ，槽的橫截面為等邊三角形。
  2. The following are the large projects undertaking by haifeng company : crude oil electricity plant project of north china oil field hydroelectricity factory, apartment ( 22 stories ) of yuanda real estate company of dalian shipping group, helios hotel of helios group in dalian development zone, tilt aqueduct bridge of shanxi hongqi reservoir ( total span : 267m ), supply and sale building and city construction building ( both are antique architectures ) of shanxi heyang city, sea drainage pipe of hainan fudao fertilizer factory ( 1520 ), 8 oilgas docks of hainan haiyan oilgas company, basha condensable gas transfer station of haiyan company, 10, 000m3 oilgas storage tank of arco company ( usa ) in hainan nanshan, gas pipe and fuel gas installation project of hainan nanshan electricity co., ltd, base and accessory project of hainan gas company, bei da huang cereal and oil market in harerbin, hainan cross island pipe, changhuajiang river pipe crossing project, taihangshan mountain earthwork project ( the 19th section of west - to - east gas transmission project )

    海南海峰公司承建大的工程項目：華北油田水電廠原油發電站工程；大連船泊集團遠達地產公司的遠達公寓（ 22層） ；大連開發區香港太陽神集團的太陽神大酒店；陜西紅旗水庫斜拉渡槽工程（全跨267m ） ；陜西合陽供銷大樓及城建大樓（均為仿古） ；海南富島化肥廠排海管線（ 1520 ） ；海南海燕油氣公司八所油氣碼頭；海燕公司白沙液化氣中轉站；海南南山美國阿科公司儲油氣萬立米大罐工程；海南南山電力股份有限公司天然氣管線及燃氣安裝工程；海南南海天然氣有限公司基地及配套工程；哈爾濱北大荒糧油批發市場；海南環島管線；昌化江穿越工程；西氣東輸十九標段，太行山土石方工程。
  3. Then river width increased and the intensity of deep point lowing and bed material coarsening decreased and water level lowed continuously. so the bed form changed toward to u type. the bed regulation is realized through sediment silting in different parts in cross section during silting period and the deformation of bed form changed from broad u type channel to narrow and deep v type channel

    研究表明，河道在持續沖刷前期深泓點及水位下降與河床粗化同步發展，河床向v型發展；沖刷後期深泓點下降、河床粗化減弱，河道展寬增大，水位繼續下降，河床向u型發展；在以淤積為主時期的調整，是通過斷面不同部位的淤積來實現的，但都是由u型較大河槽向v型窄深小槽發展。
  4. The species, heights, diameter breast heights, canopy widths and plant numbers in 38 quadrats of 6 belt transects, which were located in yingsu cross - section and kaerdayi cross - section lying in the lower reaches of tarim river where populus euphratica concentrated, were investigated to study the distribution patterns, aggregation intensities and distribution pattern scales of p. euphratica populations at different distances away from the river

    摘要在塔里木河下游胡楊分佈集中的英蘇、喀爾達依斷面，設置了6條樣帶38塊樣地進行植被種類、高度、胸徑、冠幅、株數等因子調查，研究了不同離河距離胡楊格局分佈類型、聚集強度及其格局規模。
  5. The methods of modificatory lattice cross - section and equivalent circular cfst cross - section for calculating the maximum load of dumbbell cfst columns with eccentric loading were presented in this paper. the ultimate strength of 14 specimens were calculated by the two methods were close to experimental results. finally, the two methods were used to calculate the ultimate strength of arch bridge of zhengzhou yellow river highway

    對現有鋼管混凝土啞鈴形構件極限承載力的計算方法進行了分析，在此基礎上，提出了計算鋼管混凝土啞鈴形構件的偏壓極限承載力的修正的格構式截面法和等效截面法，兩種演算法的計算結果與試驗值均吻合較好，最後用這兩種演算法計算了鄭州黃河公路二橋拱肋的極限承載力。
  6. In this thesis, first, reasons and factors for the stability of loose rock dams were summarized according to the field surveys and certain expert ' s experiences. then, researches on block stability problems were reviewed, and according to the relationship between grain size and incipient velocity, it is found that the block weight is in direct proportion to 6 - 9 power of incipient velocity, and 50 % increase of the velocity will result in about 40 times change of the block weight. after that, experiments were conducted in a flume, focusing on the relationship between incipient velocity and some main factors including block weight, water depth over the dam, cross - section size, block material and river bed material

    本文首先根據散拋石壩損毀情況的現場調查資料，結合有關專家多年的整治經驗，總結出壩體的損毀原因及影響因素；對現有塊體穩定性的研究成果進行回顧和總結，並針對散拋石壩的直接損毀現象，結合山區河流的水流、地形特點，利用塊體粒徑與起動流速的關系，提出塊體穩定重量與起動流速高次方成正比的概念，流速50的增長可能導致塊體穩定重量接近40倍的變化；通過二維變坡水槽試驗，研究了壩體穩定的主要影響因素，包括塊體重量、壩頂水深、斷面尺寸、塊體材料（塊石和卵石兩種） 、護底等，結果表明對于山區河流，試圖僅僅通過增加壩體單個塊體重量或斷面尺寸來提高壩體穩定性效果甚微；最後，根據西部地區的自然、經濟、交通等條件，提出可以採用柔性混凝土鉸鏈體等一類整體性較好的護面層作為散拋石壩的防沖毀措施，以期取得良好的工程效果。
  7. This theme selected weihe river round tianshui, jinhe river round binxian, bahe river round lantian and luohe river round luochuan to study the evolutionary model of river terraces in the mid - tail of weihe river. we have built the cross - section of each river, and analyzed the evolution of each river terrace in the mid - tail of weihe river according to the velocity of downcuting and lateral erosion

    本論文以天水渭南鎮段渭河、彬縣段涇河、藍田段灞河和秦家河段洛河為例建立渭河中下遊河流階地演化模式，以階地形成年代為標尺，根據下切速度和側蝕速度對渭河中下游各河谷階地的演化過程進行了分析。
  8. Based on the surface runoff and sediment load and changing characteristic of river boundary in different period in the lower yellow river, the regulating mechanism of cross section and riverbed withered and its influence to the flood propagation were researched systematically

    基於不同歷史時期黃河下游水沙條件和河道邊界條件變化特點，系統研究了斷面調整機理及河道萎縮及對洪水演進特性的影響。
  9. According to the documentation collected from domestic and abroad wang wei dong who works in huadong architect and structure institute utilizes the similar work property between the underground continuous wall and pile subjected the vertical loads, and introduces poulos method of elasticity and plastic which applies to pile foundation into the calculation for subsidence of underground continuous wall. pujialiu and yu yuzhou from water and electronic engineering of qinghua university, according to the result of three axes, define the concrete parameter utilize the model of non - linear e - b combined with the design cross section of dam in xiaolangdi, yellow river accept the total stress programme of thepd dam, and we analyze the stress and displacement of plastic concrete diaphragm wall by finite element method in comparison with the result of common concrete one. at same time, we consider the effect of the character of plastic concrete diaphragm wall which is composed of different gradients and adopting the level of stress and pulling stress infers whether the plastic concrete diaphragm wall is safe or not

    地下連續墻是一種歷史較短的施工方法，目前，砼防滲墻的設計還是以傳統的設計方法為主，根據查找國內外文獻資料，華東建築設計院王衛東利用地下連續墻與樁在豎向荷載作用下的工作性能有相似性，將適用於樁基的poulos彈性理論引入對地下連續墻的沉降計算中；清華大學水利水電工程系濮家騮、于玉貞根據三軸試驗結果確定混凝土的參數，利用非線性e - b模型，結合黃河小浪底土石壩設計剖面，採用thepd土石壩總應力程序，對深覆蓋層塑性混凝土防滲墻的應力、位移進行有限元分析，並與普通混凝土防滲墻計算結果加以對比，同時分析了不同配比塑性混凝土特性的影響，並採用應力水平和拉應力數值來判斷塑性混凝土防滲墻的安全程度。
  10. The first part mainly introduces the gis concept and contents of gis, the comparison between the related software and gis, the present condition and development trend of gis etc, then introduced how to use the gis technique in a specific way such as using the method of " the half - automatic to follow " to turn the map into arithmetic figure, using the method of " the automatic calculates " gets the length of the line and area of field etc, at last got the length and width of every cross section of the fabiela river which is located downstream of xiangshan mountain. this method is superior and time - saving comparing with collecting data on the spot, having important and actual application worth

    第一部分主要介紹了gis的概念和研究內容， gis與相關軟體的比較以及gis的現狀、發展趨勢、當前gis研究的熱點等等，然後具體介紹了用gis的相關技術如：用「半自動跟蹤」方法對地圖進行數字化，用「自動量算」方法得到線對象的長度、面對象的面積等，最終完成了象山水庫下游法別拉河河道地形數據資料的提取工作，這種方法與人工實地採集工作相比，有較強的優越性和重要的實際應用價值。
  11. The paper calculates the volume of scour and fill of the inner mongolia section of the yellow river respectively through the observed data of cross sections, coming sediment and variations of water level with same discharge and the results are basically the same

    摘要通過實測斷面資料、來沙量資料和同流量水位的變化等，對黃河內蒙古河段的沖淤量分別進行了估算，其結果基本一致。
  12. Analysis on adjustment characteristics and causes of cross section of river channel in lower of weihe river

    渭河下遊河道橫斷面調整特點及原因簡析
  13. At first, the author analyzed general situation and each landscape elements and visual effects of 18 main lakes in wuhan city downtown, and put great emphasis on landscape character of pool, marsh and river beside of the lake, and the different quality, flat surface and cross section of shore

    本研究分析了武漢市市區內18個主要湖泊的景觀概況以及各景觀要素的現狀和觀視效果，重點討論了湖泊、池塘、沼澤和河流的景觀特點以及岸坡的質地、平面形態、斷面形態等景觀特點。
  14. In the paper, the flexural river distribution, flexural radius, central angle and flexural coefficient at middle reaches of huaihe river are analysed statistically, and the cross - section of river is prelimary analysed

    摘要文章著重對淮河中游的彎道分佈及彎曲半徑、中心角、曲折系數進行了統計分析，並對彎道的斷面形態進行了初步探討。
  15. The project mainly solved the problems from the flood control, the morphological diversity of river profile and cross section, and the diversity of habitats in the river through the layout of shoreline and structures, the design of river profile and cross section, the design of riverbank protection, which is one effective engineering practice of eco - hydraulic engineering

    治理工程在岸線布置、沿河建（構）築物布置、河流縱橫斷面設計、岸坡防護設計等方面解決了防洪安全、河流縱向形態多樣性、斷面形態多樣性以及河流內棲息地多樣性等問題，是生態水工學理念的一次有效工程實踐。
  16. With the designing and building of yichang yangtse river highway bridge, a single - span suspension bridge with main span of 960m, some technical problems such as the layout of structural system of the suspension bridge, the type of cross section of stiffening steel box girder, the structural system of the anchor and the cracking - resistant techniques of the bulky concrete anchor have been studied in the present thesis. some valuable conclusions have been achieved that provided a substantial support for the successful completion of the bridge. the thesis contains five chapters

    本文以湖北宜昌長江公路大橋（主跨為960m的單跨懸索橋）的設計與施工為背景，對大跨懸索橋設計與施工中的若干問題如懸索橋結構的合理布置、加勁鋼箱梁斷面型式的合理選取、錨碇結構的合理確定以及錨碇大體積混凝土設計與施工的綜合防裂技術等進行了研究，取得了一批富於實用價值的研究成果，為宜昌長江公路大橋的順利建成提供了卓有成效的技術支持。
  17. It was shown that in most cases p. euphratica appeared to have an aggregative distribution at different distances away from the river but it tended to be diffusive, appearing to have an random distribution ; in the two cross sections, p. euphratica tended to increase its distribution pattern scale and aggregation intensity as the distances increased and the distribution pattern scale of p. euphratica in kaerdayi cross - section was lower than that in yingsu cross - section at the same distances away from the river, which was because the cross sections had different underground water conditions and topographical conditions

    結果表明：胡楊在不同離河距離大都表現為聚集分佈，在離河最遠的地方有擴散趨勢，呈隨機分佈；不同離河距離的兩斷面均表現出隨離河距離加大胡楊格局規模加大、聚集強度加強的趨勢，同一離河距離喀爾達依斷面比英蘇斷面胡楊格局規模小，這主要是地下水條件和當地地形不同所致。
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