滯水土 的英文怎麼說
中文拼音 [zhìshuǐtǔ]
滯水土
英文
poorly drained soil-
When soil antecedent condition is dry and the initial rainfall intensity is high, peak surface runoff also considerably lag behind that of rainfall, because of the formation of temporary relative impermeable top layer ; b ) surface runoff is controlled primarily by infiltration - excess runoff mechanism under unsaturated condition ; the major fraction of surface runoff are dominated by saturated infiltration - excess runoff response, only a small fraction by return flow mechanism when soil is saturated ; c ) subsurface flow is dominated by saturated runoff mechanism, and the duration of subsurface post the rainfall end is dependent upon rather the soil properties than the rainfall characteristics ; d ) subsurface flow intensity in cultivated soil layer ( 0 ~ 20cm ) is high up to 35mm / h when rainfall intensity is up to 120mm / h, indicating the existing of macropores and pipe flow in cultivated layer
2 ）耕作制下紫色土的產流主要機制是： 1 ）當雨前土壤含水量未達到飽和狀態時，表面產流起始時間有明顯滯后現象，這與紫色土的快吸水性和較多非毛管孔隙密切相關；當雨前土壤較乾燥，降雨初期雨強較大時，易形成臨時相對不透水表層，表面產流峰也有明顯滯后現象。 2 ）表面徑流的產流方式主要是超滲產流，當土壤達到飽和狀態后，有四川大學博士學位論文小部分回歸流發生，但主要是飽和超滲產流發生，因為紫色土的相對不透水層和其它透水障礙層不明顯。 3 ）壤中流主要是飽和產流，與降雨過程有明顯的滯后，而且雨停后的壤中流產流歷時與降雨特徵無關。The authors analyzes the function change of urban in its evolvement and the eco - environmental problems caused by this change. based on this analysis and the method of systems ecology founded by odum h t, the authors discuss the aim and the principle of urban eco - environment planning under the sustainable development ; put forward the general view of urban eco - environment planning in which the kernel is the adjusting of industry structure, land - use structure and spatial pattern ; construct the dynamic simulating model of eco - environment planning of guangzhou city, china which organizes the models of economy, population, the equilibrium of carbon and oxygen, and other models of atmospheric diffusion, rainwater sedimentation, vegetation absorbing to so
在剖析城市演化歷程中的功能變遷與導引的生態環境滯脹類型和危害的基礎上，著重利用系統生態學的原理和方法，探討了可持續發展要求下的城市生態環境規劃的目標原理和研究的內容方法及過程提出了以產業結構土地利用結構和空間格局的調整為核心制定城市生態環境規劃的總體思路創造性地融大氣擴散雨水沉降和植被吸納soIn this thesis, four types of steel beam - rectangular cfst column connections, including normal welded flange plate ( wfp ) connection, bolted flange plate ( bfp ) connection, stiffened end plate ( sep ) connection and double split - tee plate ( dst ) connection, were designed based on the configuration of steel frame connection. total 8 models, 2 models of each kind of connections were tested under low - reversed cyclic loading at the end of cfst columns. the relationships between force and displacement at the end of columns, the relationships between the moment and rotation of the joints, degradations of strength and stiffness, ductility, failure mechanism and failure characteristics of these four connections under different axial - compression ratios were presented
本文借鑒鋼框架節點構造，設計了四種類型矩形鋼管混凝土柱與鋼梁連接節點，包括常規栓焊（ wfp ）節點、翼緣全螺栓連接（ bfp ）節點、雙t板連接（ dst ）節點以及加勁端板連接（ sep ）節點，進行了四類節點8個模型試件在柱端低周反復荷載作用下的抗震性能試驗研究，比較了不同軸壓比下節點的滯回性能、強度與剛度退化、延性、破壞機理與破壞特徵，主要結論有： 1 、節點的位移滯回曲線與轉角滯回曲線為塊型分佈，沒有或略有捏攏現象，耗能能力強； 2 、軸壓比對節點滯回曲線有顯著影響，全部節點都有顯著的剛度退化； 3 、位移與轉角骨架曲線在峰值荷載後有較長的水平或下降段，具有良好的延性性能； 4 、從整體抗震性能上看，翼緣全螺栓連接節點、雙t板連接與加勁端板連接節點都優于常規栓焊節點，可在實際工程中加以推廣。The farther from drainage surface the soil mass, the more significant the phenomenon of the delay
離排水面越遠的土體，其有效應力滯后發展的現象越顯著。The results indicate that soil moisture and precipitation have an obvious trend, and there is a positive lagged correlation between soil moisture and precipitation. the results also show that the spatial distributions of soil moisture and precipitation are heterogeneous
結果表明，土壤濕度和降水有較明顯的變化趨勢，土壤中各厚度層土壤濕度滯后降水的關系基本呈正相關關系，降水及土壤的空間分佈呈現不均勻性。Forests as an adjuster for ecological balance in mountain areas play important roles in soil and water conservation, runoff and silt retardance etc. especially, forests are regarded as " forest reservoir " due to their great hydrological regulation functions through canopy, undergrowth, litterfall and soil layers
森林是山地生態平衡的重要調節器，特別是其水源涵養、理水保土、緩洪滯淤的功能對于山地面積大的福建省顯得極為重要。森林通過林冠層、林下植被層、枯枝落葉層以及土壤層發揮良好的涵養水源、保持水土、削峰滯洪等「森林水庫」的功能。Results showed, taking jia - lu - he catchment as example, that the integrated control of soil and water loess could reduce the flood - peak flow and flood water amount, that the flow process has been prolonged and that the peak flow was postponed
提出了水土流失綜合治理對大中流域暴雨洪水影響的研究方法。以佳蘆河為例，分析表明：水土流失綜合治理使暴雨洪水的洪峰流量、洪水總量降低，洪水過程持續時間延長，洪峰滯后。In the construction of the underground pavement - wuhan qingnian road ( the west beihu road ), the well - precipitation is adopted to evaculate the penetrating water in the pavement field and the up level stagnation water, which consolidates the ground and 1ars a working condition without water
摘要武漢市青年路（北湖西路）地下人行地道工程施工中，為了疏干通道土層范圍內的潛水及上層滯水，固結地層為施工創造無水作業環境，採用了洞外井點降水。Water - earth type : yin - cold - damp, sp / k yang def, qi stag. / blood stasis insufficiency of ascending qi ; infertility patients born in ’ 64 and ’ 66 correspond to this patter at large
水土偏重年出生的人，類似臨床上稱為陰寒濕型、脾腎陽虛型、氣滯血瘀型體質。屬于「升氣」不足， 1964年、 1966年下半年生的不孕癥患者大致屬於此型。( 4 ) water flow model experiment is made and hydraulic pressure variation is observed, " the detainment and displacement " of semipervious aquifers in the process of decreasing water is also studied
（四）模擬二元結構土層，進行土樣滲流試驗，觀測水壓的變化，研究弱透水層承壓水在降水過程中的「滯后和位差」現象和問題。The rule about water flow in the unsaturated soil and the soil - water characteristic curve are described in this thesis in the first time step during the numerical simulation, the permeability coefficient is calculated according to the initial water content of the unsaturated soil, because of as shown in the soil - water characteristic curve has the hysteresis phenomenon
闡述了非飽和土中水流動的基本規律和土水特徵曲線。由於土水特徵曲線具有滯后的特點，提出了根據初始含水量來確定數值模擬初始時步非飽和土的滲透系數。The study results showed that it was suitable for assessing the impact of highway route selection on the ecological environment using quantitative analysis indexes of vegetation coverage, biomass, flood detention ability, soil character change, cropland occupation and water and soil erosion, and it was suitable for route selection using the comprehensive ecological impact assessment method
結果表明，用植被覆蓋率、生物量、滯洪能力、土壤變化、農田佔用、水土流失量等6項指標來定量分析生態影響程度效果較好，採用綜合生態影響評價指數法確定線路的舍取是可行的。According to the situation on back - salinity at clay interlayer in gansu shule river irrigation area, the improvement technology on drainage salinity through stand - hole was suggested to adopt in shule river irrigation area
摘要針對甘肅省疏勒河灌區粘土夾層土壤的阻水滯鹽作用，提出了豎孔排鹽改良技術。The study on retarded creep behavior using creep theory under condition of reservoir water lever in stabilized status for one and a half year demonstrates that the viscous coefficient of sliding soil shall increase as creep procedure continues, meanwhile, the displacement process of landslide surface area fitted by logarithmic curve matches closely with measured values
以蠕變理論研究在庫水位穩定一年半的條件下滑坡的減速蠕變現象，證明滑帶土粘滯系數隨蠕滑過程不斷增大，以對數曲線擬合滑坡表部位移過程與實測值吻合較好。Then, the main factors that have resulted in the low level of the mechanization have been analyzed : the working scale of the soil, the rate of agricultural labor force transferring to other fields, farmer ' s low income, the backwardness of agricultural electrization, farmer ' s overall culture level and the weakness of expanding force
在此基礎上對導致我國農機化發展水平較低的主要因素進行了分析，認為農村土地經營規模、農業勞動力向非農業轉移速度、農民收入水平低、農業電氣化滯后、農民總體科技文化水平低和農機推廣力量薄弱是影響我國農機化發展的重要因素。By changing the parameters of stirrups ratio and axial load ratio, 6 high strength concrete ( hsc ) columns are tested subjected to cyclic lateral load. the baring capacity of hsc columns with new form of stirrups are compared with hsc columns with normal form of stirrups. load - displace relation curves are obtained
本文以體積配箍率和軸壓比為主要控制參數，對不同配筋模式的6根高強混凝土壓彎構件進行了低周水平反復加載試驗，得到了箍筋約束混凝土的荷載?位移滯回曲線。It was showed that forest with good structure could improve the soil noncapillary porosity and water conversation function, and it was implied that forest with rational structure stored rainfall and surface runoff quickly
表明具有良好結構的林分，可有效改善土壤非毛管孔隙度和滯留貯水功能，從而有效地提高對降雨的快速貯存以及蓄洪與涵養水源作用。The research indicate that the structured soft clay has below several characteristic, the viscous strain is produced during the stage of primary consolidation and of second consolidation, and in the prophase, the relation of stress - strain - strain rate is unique, so the form of constitutive model, such as, f ( v ', e ) = 0, f ( ' v, e, t ) = 0, ca n ' t describe strain behavior of soil skeleton rationally ; the time - dependent properties involve three aspects, in addition the time - dependent strain, apparent preconsolidation pressures that depend on strain rate, and the effect of creep compression on apparent preconsolidation pressures ; because of holding structural strength, the mechanics characteristic is determined by the magnitude of stress, and the compression curve is composed of several sections. by combining structural yield stress and it ' s characteristics with the improved time line model, a new one - dimensional elastic visco - plastic consolidation model is established
研究結果表明，結構性土的固結過程具有以下特性：主固結和次固結階段都包含有因土骨架的粘滯性移動而產生的變形，而且在正常固結階段，存在應力?應變?應變速率的唯一性， f （ _ v ， e ） = 0 、 f （ _ v ， e ， t ） = 0形式的本構關系不足以描述土骨架的變形行為；固結壓縮過程中的時間效應包括三個方面的內容，除了應力應變關系與時間相關外，還包括粘滯性變形引起表觀前期固結壓力增加和屈服應力的應變速率效應；軟土的結構性使其力學特性與應力水平相關，壓縮曲線具有分段性。Sailing on the seas in search for unexplored land, a group of settlers hit stormy waters & become stranded on a marooned island. they decide to establish their colony there
行駛在大海中尋找未知的土地時，一群定居者襲擊了風風雨雨水域成為滯留就被困島上。他們決定建立自己的殖民地。Thirdly, as the superfluous labour force in the countryside being difficult to transfer to the city, the marginal output of agriculture becomes low and the city population cannot increase accordingly, so the prices and demands of farm produces are on the low side, and peasants cannot rely on lands to provide for security
第三，由於農村剩餘勞動力難以轉移，農村勞動力的邊際產出很低。城鎮化的步伐嚴重滯后，城鎮人口比重較低，對農產品的需求不旺，農產品價格長期在低水平徘徊。土地產出的價值下降，農民難以依靠土地實現保障。分享友人