河流比降 的英文怎麼說

中文拼音 [héliúbǐjiàng]
河流比降 英文
fall of the river
  • 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...
  • 流 : Ⅰ動1 （液體移動; 流動） flow 2 （移動不定） drift; move; wander 3 （流傳; 傳播） spread 4 （向壞...
  • 比 : Ⅰ動詞1 （比較; 較量高下、 長短、距離、好壞等） compare; compete; contrast; match; emulate 2 （比...
  • 降 : 降動詞1. （投降） surrender; capitulate 2. （降伏） subdue; vanquish; tame
  • 河流 : rivers; stream
  1. The hydrology and aerography indexes change in the middle of the rainy season in dry - hot valley are explored in this paper, which involves the mean ground temperature, relative humidity, runoff on trunk, rainfall, evaporation quantity, etc

    摘要對雨季中期乾熱河谷加勒比松林林中與林邊平均地溫、空氣相對濕度、樹幹流量、降雨量、蒸發量等水文氣象指標進行了研究。
  2. So this article analyses deeply in the method of ensur ' my designing food rolume which is an important element to affect the " designimy height of bridge " it brings forward an " arverage optiminmy suiting line " method which is a bondage discommode series at the same time it puts forward a ensurmy principle for rough coefficient " and " fallimy flood proportion which are both suitable to heilongjiang province at last this article introduces the " three - days rainimy rolume " method

    本文立足於黑龍江省各種河流的洪水特點，結合以往工程實際，對影響跨河橋梁設計高度的主要因素? ?設計洪水流量及其相應洪水位的確定方法加以詳細分析。提出有約束不連序系列的加權優化適線法及適合於黑龍江省的河流粗糙系數和洪水比降的確定原則，並介紹了三日降雨量法。
  3. Secondly, based on the microbeam analytical technique, on the one hand, through investigating the characteristic of major elements in the mantle minerals the author acquired the static information from mantle ; on the other hand, through multi - point analysis of a part of the minerals from mantle, the auther got dynamic information from mantle. finally, generalizating the fruits of this study and predecessors, the autor holds that the constituents of lithospheric mantle possibly includes spinel lherzolites, clinopyroxenites, websterite, dunite, harzburgites, garnet lherzite, phlogopite lherzite, eclogites, clinopyroxene megacrysts ; compared with east china and north china platform, the research field mantle shows the characteristics of higher degree of partial melting processes and more depleted mantle ; the. upper mantle beneath north hetian area is heterogeneous, with a tendency of deficit in a12o3 and lree from kaliyang in west hetian to the river basin of kalakshi river and yulongkashi river ; the subduction of the crust beneath north hetian has ever occurred in geological history and caused the mixing of mantle - crust ; the depth of the origination of basaltic magmas beneath north hetian exceeds 73km ; the thickness of the lithosphere beneath the research area amounts to 204. 9km ; the mantle beneath north hetian has geological condtions for forming diamond deposits

    最後，綜合本區幔源礦物和地幔巖石的特徵以及地球物理資料，得出如下結論：本區上地幔的物質組成有尖晶石二輝橄欖巖、二輝巖、單斜輝石巖、純橄欖巖、方輝橄欖巖、石榴石二輝橄欖巖、金雲母二輝橄欖巖、榴輝巖；與中國東部以及華北地臺上地幔相比，研究區上地幔具有富集主元素中相容元素和虧損其中的不相容元素的特徵，局部熔融程度較高；上地幔存在橫向和縱向的不均一性，從西部的克里陽到喀拉喀什河和玉龍喀什河流域， al和lree富集程度呈下降趨勢，不同來源的相同礦物中主元素的含量差異較大；地質歷史時期這里可能發生過地殼俯沖並產生殼幔混合作用；玄武巖漿的起源深度73km ；從幔源重砂礦物的溫壓估算結果，可以推斷出巖石圈厚度可達204 . 9km ；綜合巖石圈物質組成特徵、巖石圈熱狀態、地幔溫壓狀態、氧逸度以及幔源巖石和幔源礦物的化學成分，認為研究區具備了金剛石成礦地幔地質條件。
  4. Besides, the sedimentary facies of upper ganchaigou and lower ganchaigou formation were also mapped in supersequences which are the main target strata for exploration. the high resolution sequence stratigraphic framework showed the genetic relationship between the distributions of sedimentary facies and their tectonic settings. the near - source sedimentary systems such as subaqueous alluvial fan and lake - floor fan are often deposed in rise - hemicycles in the steep slope background in the north, the coarse lithology of fan - delta prograded from north to south in fall - hemicycles, and the braided stream facies are formed in the rise - hemicycles in gentle slope background in the south, braided stream facies prograded from sorth to north in the fall - hemicycles, but the lacustrine facies and salt lake facies developed in the middle part of the area

    詳細的沉積相研究發現，紅獅地區第三系發育有沖積扇、水下沖積扇、河流、三角洲、扇三角洲、湖泊和湖底扇7種主要沉積相類型，並對作為區內主要勘探目的層系的下乾柴溝組和上乾柴溝組進行了以超層序為單位的沉積相平面編圖，以較高的時間解析度揭示了區內沉積相帶的平面展布及其在不同構造背景中的分佈規律，比如在北部的凹陷陡坡背景下，上升半旋迴低水位期通常發育有水下扇、湖底扇等陡岸近源特徵的沉積體系，下降半旋迴高水位期，扇三角洲相粗碎屑巖由北向南進積;在南部的凹陷緩坡背景下，上升半旋迴主要發育辮狀河流相，下降半旋迴辮狀河三角洲相由南向北進積;而中部紅柳泉一獅子溝一帶則為湖泊相沉積和鹽類沉積。
  5. Generally the rainfall on steeplands may be no more erosive than that on nearby lowlands, the resulting runoff and eroded sediments will move much more quickly on steep slopes, and will provoke more severe rill and gully erosion ( source : fao soils bulletin 75 )

    通常坡地的降雨侵蝕比附近的低地更嚴重，這樣坡地的流失物和侵蝕的沉積物移動更快，引起河流侵蝕。
  6. The factors include antecedent precipitation of low flow period and status of karst basins ( such as lithology, landform, drainage area, drainage density, length and ratio of demotion of main river and so on. ). based on the former studies, integrated the conventional statistic methods, the technique of anns is applied in this paper for researching the law of the low flow of karst basins in guizhou altiplano

    影響喀斯特流域枯水徑流的因素異常復雜，其影響因素主要有枯季前期降水量和巖性、地貌、流域面積、河網密度、主河道長度及其比降等流域下墊面狀況。本文在前人研究的基礎上，採用人工神經網路技術，結合傳統的統計方法，研究貴州高原上喀斯特流域的枯水徑流規律。
  7. The optimum interpolation method is used to estimate radar measured rainfall which then be applied to topmodel to simulate discharge of shiguanhe catchment during the summer of 1998 in game hubex project. comparison of simulated discharges between radar and rain gauge implements over a 1500 - hour series

    運用雷達聯合少量雨量計方法估測流域面雨量，結合game hubex國際合作項目1998年加強觀測期在史灌河流域獲取的水文觀測資料和topmodel進行降水徑流模擬，並與稠密雨量計站網測量的面雨量進行流域出口流量模擬的對比試驗。
  8. A 2 - d hydrodynamic - numerical model was applied to typical rocky rapids called jiyutan by comparing different computational models. based on the comparison of different schemes, the change of the discharge and the flow current in a branch were analyzed, and the relationship between the flow condition and excavation area, scope as well as mode was discussed, the conclusions show : ( 1 ) in a branching rocky rapids, the velocity may be reduced and flow condition can be improved by excavating one channel partly

    本文在對各種數學模型比較的基礎上，應用二維水動力數學模型研究典型石質汊流灘? ?廣西潯江鯽魚灘航道整治工程方案，通過各方案計算結果比較，分析了不同汊道的開挖及汊道內不同開挖面積、開挖范圍以及開挖方式所引起的分流比及工程區域航道水力條件的變化規律，研究結果表明： （ 1 ）對于石質汊流灘來說，在某一汊道通過局部開挖河槽，擴大過水斷面面積，可以達到降低工程段流速、改善局部水流條件的目的。
  9. Contribution percentages about precipitation to runoff were calculated to divide rapid flow and slow flow in the model, the proportion of them of wuyandong subterranean stream system is 2 to 3

    通過降水對徑流的貢獻率進行快速流和慢速流的劃分，屋檐洞地下河系統的快速流與慢速流比例接近2 ： 3 。
  10. Excavating riverbeds in one channel may not only reduce the velocity area in some areas but also increase the velocity in other areas by increasing flow rate in this channel without correspondent changes in riverbeds of rocky rapids. in result, the velocity in waterway may be increased instead of be reduced, the flow condition may also be deteriorated. thus, which branch should be excavated and how to excavate in improving the flow condition of the branch should be further explored

    但在分汊河道內，情況較為復雜，在一汊河道內採取開挖措施后，雖然其過水斷面有所增加，局部流速相應降低，但是由於工程后，汊道的分流比將會相應變化，而石質河床一般無法通過沖淤變化以適應水流條件的改變，因此，航道內工程處的流速可能降低，也可能不降反而有所增加，惡化了航道的水流條件。
  11. The statistics show that the correlation of antecedent precipitation, lithology, landform, drainage density, drainage area, length and ratio of demotion of main river and four characteristics of low flow is very complex

    統計結果表明：流域的枯季前期降水、巖性、地貌、流域面積、河網密度、主河道長度及其比降等因子與喀斯特流域的枯水四特徵的相關關系異常復雜。
  12. Normally water resources is affected by human activities and climatic change, but it is affected mainly by climatic change in runoff forming regions located in the high and middle mountainous area in the northwestern china. river runoff in the hexi inland arid region all originates from the qilian mt. area and the change of mountainous runoff resulted from global weather warming up and will bring an important effect to the development of society and economy in the hexi region. so the response on mountainous runoff and its changing trends are analyzed on the basis of the measured data of precipitation, air temperature, and discharges observed from some weather and hydrologic stations in the studied area. the results show that seasonal variation of mountainous runoff in the hexi inland region is mainly affected by the river ' s geographical location and supply source, and the yearly change by precipitation and that in the west of the region by air temperature besides precipitation. there are some obviously regional differences in the influences of climatic change on surface runoff in the hexi inland arid region, that is, rivers runoff in the west of the hexi area have been increasing and rivers in the east part have been decreasing, and the rivers runoff in the central part presented slowly increase trend, such as the heihe river, but it is not quite obvious

    一般情況下，水資源的變化主要受氣候變化和人類活動的影響，但在位於我國西北內陸乾旱地區的中高山地帶，徑流的形成主要受前者的影響.甘肅省的河西內陸乾旱區是該省重要的工農業生產和經濟開發區，這里各項社會和經濟活動與出山徑流的變化都有著十分密切的關系.因此，筆者根據有關水文氣象臺站的降水、氣溫和徑流觀測資料，分析了以黑河、昌馬河、西營河等主要河流為代表的河西內陸區出山徑流的變化特徵與規律.結果表明，河西內陸區出山口徑流的季節變化主要受地理位置和河流補給來源的影響，而年際變幅則受山區降水量年際變化及變幅的影響十分明顯.目前，梨園河以西河流水量處于上升階段，梨園河以東的河流則處于下降的階段;以黑河幹流鶯落峽水文站年徑流為代表的走廊中部地區的出山口徑流正處於1990年開始的枯水段的上升段.但總體而言，河西內陸乾旱區出山口徑流的變化相對比較穩定.預計今後若干年內，河西內陸乾旱區東段河流出山口徑流的變化以偏枯為主，中段、西段河流出山口徑流的變化以平水或平水偏豐為主
  13. ( 2 ) a series of experiments on time scale distortion are made with real river model, inflow and outflow boundary condition, and continuous simulation. by means of analysis of the experimental data on model water level, water - surface gradient, cross velocity, outflow discharge process and the sediment transportation capacity, the main physical reasons for the above hydraulic parameters deviations caused by time scale distortion are illustrated : response delay of model channel storage capacity and rate of water level with time

    （ 2 ）採用真實的河工模型和入出流邊界控制條件以及連續模擬的方法進行了有關時間變態率的系列試驗，通過模型水位、比降、流速、出口流量過程線和斷面挾沙力試驗資料的分析，闡明了時間變態引起上述各種水力參數偏離的主要物理原因：模型的槽蓄響應和洪水過程時間變化率的響應滯后。
  14. ( 3 ) in excavation channel, the velocity in engineering area may be reduced, but the velocity in other areas of this channel may be increased and the flow condition may be deteriorated as a result of the increase of flow rate in this channel. thus, it should be discussed and studied before engineering practice

    （ 3 ）在汊道的開挖中，工程區域的局部流速可能有所下降，但因分流比有所增加，可能導致其餘部分河段的流速有所增加，惡化航行水流條件，因此在工程前需要進行充分的論證和深入的研究。
  15. Abstract : variations of flow pattern, flow velocity in deep poo l and side bar, mainstream thread, and water surface, caused by excavation project, are investigated by two - dimensional mathematical model in an orthogonal curvili near coordinate system. the change of bed - load transport rate, and redeposition r ate are predicted. the influences of the excavation project on navigation are ana lyzed. grid - type and flat - type excavation alternatives are proposed and discuss ed

    文摘:採用正交曲線坐標系下的河道平面二維數學模型，研究了嘉陵江何家磧邊灘采砂后河道流勢、流態、灘槽流速、主流位置、水面高程及比降的變化規律，預測了采砂方案完成後卵石推移質輸沙率變化及其對航道的影響，並對格形開挖和平整開挖方案進行了比較分析
  16. It shows that the water level in the definite reach is lower than that with same discharges before dredging river, the surface slope on upper reaches dredged is enlarged and deposition load on bed is reduced or eroded

    主要表現在可以引起一定范圍河段內的水位較挖河前同流量下有所降低，開挖上遊河段水面比降增大，床面淤積量有所減少或發生沖刷。
  17. The width of main channel would influence the water level rising rate greatly in flood events. when the discharges in main channel increased to 8000 m ' / s from 3000 m3 / s the water rising amplitude at hydrometer stations in the lower yellow river was correlative well with the exponent ( - 0. 65 ) of main channel width and the exponent ( - 0. 33 ) of river longitudinal slope

    洪水期主槽寬度對水位漲率有較大影響，主槽流量從3000m ~ 3 s增大到8000m ~ 3 s時，下游各水文站斷面水位的抬升幅度與主槽寬度的（ - 0 . 65 ）次方和河道縱比降的（ - 0 . 33 ）次方具有較好的相關關系。
  18. System of hydrologic data collection and transmission can automatically collect, transmit and process the real time data such as rainfall, stage and discharge with the latest achievements in communication and computer technology

    摘要水情信息採集系統是應用遙測和現代通信技術，實現江河流域降雨量、水位、流量等數據的實時採集、報送和處理的信息系統，它具有傳輸數據量小、通信網路分佈地域廣以及通信條件比較惡劣等特點。
  19. Analyses of the monitored seepage data of the sand case dam with clay core of jilihe reservoir show that the impervious effect of the clay core is good, that the blanket in the front of the dam has little impervious effect, and that seepage failure will probably take place because of the weak cutoff groove and the large seepage gradient

    摘要對吉利河水庫粘土心?砂殼壩的滲流觀測資料分析表明，該壩粘土心?的防滲效果較好，但壩前鋪蓋沒起到防滲作用，且截滲槽較薄弱，滲透比降較大，可能發生滲透破壞。
  20. Research manifests that : ( 1 ) allocation in the year of precipitation is very uneven, and yearly precipitation is different in great scope, negative anomaly of precipitation appear concentratly in the 1990s, the precipitation in the 1990s decreased in different degree ; ( 2 ) close positive correlation exists between runoff and precipitation, runoff is abundant in the year with prolific precipitation, and generally in the year with scarce rain the volume of runoff is not enough ; ( 3 ) there is 20 % margin in their changes amplitude, this mainly resulted from high frequent human activities

    結果表明： （ 1 ）流域內降水年內分配極其不均；年際變化劇烈，進入90年代后降水負距平集中出現， 20世紀90年代降水較多年均值有較大程度的減少； （ 2 ）流域內河川徑流與降水之間存在密切的正相關關系，降水量多的年份，河川徑流豐富，反之較枯； （ 3 ）河川徑流積極響應降水的變化，然而河川徑流變化幅度卻比降水變化幅度大20 % ，這個偏差主要是由於頻繁的人類活動的干擾造成的。
分享友人
分享到 Line

分享到臉書