速率坡 的英文怎麼說

中文拼音 []
速率坡 英文
velocity gradient
  • : Ⅰ形容詞(迅速; 快) fast; rapid; quick; speedy Ⅱ名詞1 (速度) speed; velocity 2 (姓氏) a surna...
  • : 率名詞(比值) rate; ratio; proportion
  • : Ⅰ名詞(地面傾斜的地方) slope Ⅱ形容詞(傾斜) sloping; slanting
  • 速率 : speed; rate; tempo
  1. They are jinfo mountain in nanchuan county ( natural protection section ), wuling mountain in qianjiang county ( national emphases forest demonstration county which forest cover rate is beyond 50 % ) and zhongliang mountain in beibei county ( artificial destruction is very grave ). some main land use patterns i. e. woodland, garden, infield, abandon infield, shrub and grassplot are selected in those three sample sites. four aspects on soil fertility index of karst environment under different land use patterns in these three sample sites, are revealed in this paper, by using the field test, indoor measure and analysis, outdoor experiment and field investigation, and the knowledge and technique of soil, ecology, physics and chemistry etc. they are physical characteristic ( effective soil thickness, organic layer thickness, soil texture, water - stable aggregate and soil water etc. ), chemical fertility ( organism, omni - n, omni - p, omni - k, alkali - nitrogen, available p, available k and rapid available k etc. ), soil animalcule ( bacteria, fungi, actinomyces and their grosses ) and soil - seed - pool ( plant community diversity index ) in karst ecosystem

    本研究以重慶市的南川金佛山(自然保護區) 、黔江武陵山(國家重點退耕還林示範縣,森林覆蓋50以上)和北碚中梁山(遭人為破壞嚴重)典型巖溶區為對象,選擇了幾種重要的利用方式,包括林地、果園、耕地、棄耕地和灌草,採用野外巖溶生態調查和室內試驗測量分析相結合的方法,以不同土地利用方式巖溶土壤肥力為重點,對不同土地利用方式土壤肥力特徵進行量化分析,找出巖溶土壤肥力差異的主要方面及其根本原因,論文主要從土壤剖面物理退化指標(有效土層厚度、有機質層厚度、質地、團聚體、水分含量等) ,化學肥力退化指標(有機質、全n 、全p 、全k 、堿解n 、效p和效k等) ,樣地土壤微生物指標(細菌、真菌、放線菌數量及總量)以及樣地土壤種子庫植物群落多樣性等4個方面對重慶典型巖溶區的土壤肥力特徵進行了較為詳細的分析研究,為巖溶地區士壤資源的合理利用及結構的調控管理提供依據。
  2. To use the athwart gradient protection which takes the end of dam as the datum mark will reduce the digging depth of the stilling basins is reducing, and increase the energy dissipation rate

    採用以壩體末端為基準面的壩體逆防護時,消力池挖深減小,消能提高,壩面平均流減小,壩區防護難度降低。
  3. The results indicated that the ree tracer technology has high precision to quantify the spatial - temporal process of soil erosion ; in earlier rainfall course, the development degree of sheet and nil erosion was general equation ; otherwise in the following course, the rill erosion was dominant in the total erosion, its average erosion acceleration and the average erosion rate was 15 and 9 times of sheet erosion, respectively ; in the end of experiment, the rill erosion took up 90 % of total erosion amount ; the section of slope bottom occupying about 1 / 3 slope area was active erosion segment in this experiment

    結果表明: ree示蹤技術對定量研究土壤侵蝕具有較高的精度;降雨前期,片蝕與細溝侵蝕發育程度基本相當;後期細溝侵蝕占據面侵蝕的主導地位,其侵蝕平均加度和平均侵蝕分別是片蝕的15倍、 9倍;試驗結束,細溝侵蝕占據面總侵蝕的90 % ;本試驗條件下,面下1 / 3區域為侵蝕活躍帶。
  4. Singapore ' s infrastructure consists of a comprehensive bus network and an efficient mrt subway system

    新加的基礎設施包括有周密的公共汽車網路及高效的大眾快運輸地鐵系統。
  5. Variance index of the settlements of soft clay subgrade was inducted to analyze the asymmetry settlement rules under the influence of depth of fill, fill speed, geologic types of soft clay etc

    利用這些觀測數據,引入路堤斷面中點和兩側腳地基表面3點沉降的方差這一統計學指標,詳細分析了地質結構,填築、填築高度以及硬殼層等因素對軟基不均勻沉降的影響,得到了一些有意義的結論。
  6. The structures and dynamic changes of the artifical sand - fixing vegetation were studied based on the follow views : components of vegetation community, plant diversity, life - forms of vegetation, trends of plant growth, characteristics of the vertical and horizontal structure of vegetation, relationship between the vegetation community and environment ( including soil moisture temperature etc. ), relationship between the vegetation community and characteristics of plant physiological activities. some results were showed as follow : 1. components, diversity and life style of artificial vegetation in shapotou region the marked changes of artificial vegetation have taken place during more than 40 years, since the establishment of sand - fixing vegetation

    本文以騰格里沙漠東南緣寧夏中衛縣沙頭地區人工固沙植被作為研究對象,採用傳統生態學的野外調查方法,從植被群落的組成、多樣性、生活型、群落生長動態、垂直結構特徵、水平結構特徵、群落結構與周圍環境(土壤含水量、溫度)相互關系及其與植物自身生理生態適應特徵關系等多個角度研究了人工植被群落的結構及其動態變化,取得了如下研究結果: 1 、植被群落組成、多樣性及生活型:沙頭地區人工植被經過近50年的演變,從流動沙丘到固定沙地,沙地植被的動態變化經歷了從人工植被到人工?自然植被的轉變,從人工植被建立初期的少數幾種引種植物到現有30多種植物,隨著固定沙地時間的延長,植物種類日趨豐富,並且人工植被在15 25年、 40 50年兩個階段,物種的周轉最大,即群落結構變化最大。
  7. On the basis of analyzing factor ( soil particle composition, soil bulk density, water stable aggregate content, antecedent soil moisture, slope gradient, rain intensity, accumulation depth and soil crust, soil and water conservation tillage measures ) affecting soil infiltration rates, several relation models was obtained ; analyzed in detail different soil and water conservation tillage measures intensifying infiltration rates, while there have the same rainfall condition, the increasing infiltration rates of contour tillage and artificial digging and artificial hoeing in gully areas of loess plateau are 67 % and 41 % and 29 % ; the increasing infiltration rates in hilly areas of loess plateau is 45 % and 22 % and 14 %

    在相同的降雨條件下,黃土高原溝壑區等高耕作與直線相比,可提高入滲67 ,人工掏挖可提高入滲41 ,人工鋤耕可提高入滲29 ;黃土丘陵溝壑區等高耕作可提高入滲45 ,人工掏挖可提高入滲22 ,人工鋤耕可提高入滲14 。並根據黃土高原超滲產流的概念和水量平衡方程,建立了不同水土保持耕作措施強化入滲模型。
  8. Three kinds of springs were used to imitate different lateral stiffness of soft ground, and special drawers with sliding path were modeled as lateral displacement pile of embankment during its filling periods, with the function of reinforced - mat considered. on the basis of the data of tests designed by thogonal table l9 ( 34 ), three kinds of ( factor, depth of layer, loading ) state matrixes are obtained which could be used for procedure analysis by making use of the principle of information matrix conformation

    用彈簧模擬土體的側向剛度,用可滑動的特殊抽屜模擬軟基填築路堤腳的邊樁,並基於對邊樁側向位移影響程度室內模型試驗測試數據,利用信息矩陣構造原理,構造了總攬全局的、可用於過程分析的三種(因素、層位和荷載)狀態矩陣。
  9. But the most common noise is angle random walk, bias instability, rate random walk, rate ramp and quantization noise. in this paper, the random error model including the most common five noise as above

    對常見的五種噪聲因素包括角度隨機遊走、零偏穩定性、隨機遊走、和量化噪聲建立了陀螺隨機誤差模型。
  10. The primarily results were displayed as follows : 1. according to research for linear slope in the different slope gradient and different rainfall intensity, soil steady infiltration rates between water - pressure and no water - pressure have a linear relation while there is the same soil properties, soil steady infiltration rates in gully areas of loess plateau is between 1. 8 times and 3. 0 times, between 2. 1 times and 3. 2 times in hilly areas of loess plateau

    主要結果如下: ( 1 )以不同度、不同降雨強度下的直線為例,得出黃土耕地有壓入滲大於無壓入滲,兩者呈直線關系,在黃土高原溝壑區兩者穩定入滲之比介於1 . 8 3 . 0倍之間,黃土丘陵溝壑區介於2 . 1 3 . 2倍之間。
  11. 2. on the basis of analyzing experimental data for slope land of loess plateau in different slope gradient and rain intensity and soil and water conservation tillage measures, using curve - fitting techniques, a soil infiltration rates model was woke out, the accuracy of the model is tested by a series of experiment data, the result of these indicate that the soil infiltration rates model is accurate and has good stability for slope land of loess plateau. 3. using soil infiltration rates and runoff time and wetting frontal surface depth of soil infiltration reflect effect of factor affecting soil infiltration rates

    ( 3 )採用土壤穩定入滲面開始產流時間、土壤濕潤鋒面下滲深度三個指標來反映耕地土壤入滲影響(土壤性質、土壤初始含水、地面度、降雨強度、積水深度、水土保持耕作措施等)因素效用大小,建立了各因素與三個指標的關系模型,詳細分析了不同水土保持耕作措施強化土壤入滲的影響,其中等高耕作作用最為顯著,其次是人工掏挖和人工鋤耕。
  12. The geomorphological instantaneous unit hydrograph ( giuh ) is viewed as the frequency distribution of the times of arrival of individual water deoplets at the catchment outlet. the travel path, for a typical hillslope cell. consists of a hillslope fraction, corresponding to overland flow and a stream fraction, corresponding to concentrated channeled flow. to obtain the time of travel, velocities must be defined. hillslope and stream velocities vary with location and must be strongly correlated with slope, and therefore a spatial distribution of velocities and hence of travel times could be obtained. the present methods of giuh neglect any time delays associated with overland flow pathways

    地貌單位線被看作是流域上各水質點在弱相互作用下,到達流域出口匯流時間的頻分佈。對於一個典型的山型網格單元,匯流路徑由兩部分組成,即地部分和河道部分,為了得到匯流時間,必須首先確定匯流度。地和河道的匯流度隨著區域位置而變,並且必然與度有關,因此,可首先計算流的空間分佈,進而得到匯流時間的空間分佈。
  13. It is suggested in this paper that the sediment of the high stand system tract is mainly composed of fine - grained sediment, hardly of the large scale of fluvial - delta because of the low dip of the ramp, low subsiding rate and low sedimentary rate in basin

    研究表明,盆地基底沉降幅度小、度極為平緩、沉積很低,因此導致層序內的高位體系域多以細碎屑沉積為主,大型河流三角洲沉積基本不發育。
  14. Moreover, attentions must be paid to the tributary with slight slope bed, because the water flowing into the tributary from the main channel during the uprising period of main channel flood may cause large - scale inundate in the tributary basin

    研究結果表明:在干支流交匯口,幹流流量變化越大,支流倒灌流量越大;幹流洪水陡漲時灌入支流的巨大水量對底平緩支流可能造成的淹沒危害應引起充分重視。
  15. Through analysis, we conclude that washing action of wave and flow is main power of evolvement of region of interest landform, structure lead to the fact that water area around shallow structure in cheng dao sea field has an increase about 0. 3m / a through actual measurement, water depth increase rate around foundation is 0. 25m / a, slope gradient of side slope averagely has a decrease of 5 % o a year, however marine hydropower wash rate through compute is 0. 2m / a on underwater bottom, the wash rate on structure foundation is 0. 35m / a

    分析認為,浪流的沖刷作用是研究區水深地形演化的主要動力,構築物的存在,使埕島海域淺水區人工構築物周邊水域實測年水深增加幅度約0 . 3m a ,地基附近水深增加0 . 25m a ,邊度平均每年以5減緩,而計算得出的海洋水動力沖蝕在水下底為0 . 2m a ,在構築物地基沖蝕達0 . 35m a 。
  16. By surveying the present situation of natural rehabilitation and manmade reconstruction about the several highway rocky slope around guiyang, highway rocky slope indicates vegetation can be recovery naturally, but the recovering velocities are greatly different because the influence factors are complicated ; the protecting measures for manmade ecosystem can create good ecosystem landscapes in short time, but it can ' t resist natural disasters

    摘要對貴陽市附近數段道路巖質邊植被自然恢復和人工修復的現狀調查,路塹巖質邊面植被可自然恢復,因影響因素復雜,其恢復差別較大;巖質邊面人工生態保護措施短期內生態景觀良好,但不能抵禦自然災害。
  17. Therefore, tension tests of geogrids, pull - out tests between geogrids and expansive soils or sands, the related geotechical tests of soil " s properties, and model tests of soft ground improvement, were carried out for obtaining the engineering properties, quality index of geogrids, interaction parameters of friction characteristics between reinforcement and soils, and the affecting degree of factors influencing the lateral displacement ( pile ) rate during the construction of embankment filling with ( residual ) settlement considered restrictively

    本文以國內外大量研究成果為基礎,集中力量開展控制變形的特種土作填料的物理改良技術和加筋墊層在控制沉降軟基處理的作用研究,其核心是筋土界面相互作用關系。為此,進行了為確定土工格柵工程特性和尋找質量控制指標的拉伸試驗、筋土界面設計參數合理獲取的拉拔試驗及其配套土工試驗、軟基上路堤填築過程中腳的側向位移及其的影響因素的室內模擬試驗。
  18. The calculating results showed that elemental average infiltration ratio decreases with the increase of slope degrees

    計算結果表明,農田、草地生態單元土壤平均入滲度的增加呈指數曲線下降。
  19. Abstract : the elemental rainfall - runoff theories of fields and grasslands were analyzed, and a method calculating elemental average infiltration ratio based on the data of rainfall - runoff was also given

    文摘:分析了地農田和草地生態單元降雨產流過程,提出了一種利用降雨產流資料計算地單元平均入滲的方法。
  20. According these, slope engineering can be done. then, researches the relation between rainfall and slope, including two sides : one is relating water infiltration and soil state by soil ' s water content to show that slope situates most disadvantage circumstances when rainfall comes. the other is showing the relation between rainfall and slope by data from monitor. last, applies grey system to the slope, including gm model forecasting and grey association analysis

    然後對滑和降雨之間的關系進行研究,包括兩方面,一是利用土體含水量將雨水的入滲和土體的飽和非飽和狀態聯系起來,驗證了暴雨或者持續降雨來臨時土體處于最不利情況。二是通過實測的降雨量和位移關系,來直觀表現滑和降雨的關系。
分享友人