surface erosion 中文意思是什麼

surface erosion 解釋
地表浸蝕;表面侵蝕
  • surface : n 1 表面;地面;水面;廣場,空地。2 外觀,外表,皮毛。3 【幾】面;切口;【航空】翼面。adj 表面的...
  • erosion : n. 1. 腐蝕,侵蝕(作用)。2. 【醫學】糜爛,齒質腐損。
  1. So these karst series problems are lowness ability of making soils, distributing odds of surface water and groundwater, leakiness of fountain, alkalescence of circumstance, lowness of bio - diversity, rapidness converse succession of vegetation and fragility of soil character and entironment. and karst region produces many problems, e. g. rock desert, soil erosion and degeneration because of artificial influence and destruction

    巖溶空間介質具有地上地下雙層結構,可溶巖造壤能力低,巖溶水空間分佈不均、地表地下水關系密切、水源易漏失,偏堿性環境、生物資源集聚程度低,植被逆向演替快、順向演替難,巖溶地質與生態環境十分脆弱,受到人為因素的影響和破壞,極易產生石漠化、土壤侵蝕與退化等一系列問題。
  2. Soil quality - measurement of the stability of soil aggregates for assessment of liability to surface sealing and hydric erosion

    土質.表面密封和水腐蝕傾向性評定用土壤集料穩定性的測量
  3. Planation is a combination of external agents. erosion is the primary significance in that it cuts all the strata formed previously and in the combination with transportation and accumulation, directly affects the formation of planation surface

    夷平作用是以侵蝕為先導,輔以搬運、堆積、伴隨有地形的蝕低蝕退,以接近侵蝕基準面為目標的一種外力組合。
  4. The surface of the moon is covered with regolith. as there is no weathering and erosion, the footprints left by astronauts would remain for million of years

    月球表面鋪滿粉狀的微塵,由於沒有風化影響,太空人在月面留下的足跡相信可保存數百萬年。
  5. 3 analyzing particle size of the wind - blown sediment and surface soil indicate that the former in 0. 02mm - 0. 2mm occupy about 40 % and 55 % of sloping field and shoaly land of bashang, which shows that bashang is the erosion and desertification region or the latency. 4 the search of decreasing effect of wood strap indicates that in lower wind speed the effect is distinct

    3風蝕物及表層土壤顆粒粒徑分析表明,地表200cm高度內風蝕物粒徑在0 . 02mm 0 . 2mm之間;壩上地區坡梁地與灘地該粒徑范圍顆粒分別佔40和55左右,說明壩上地區是風蝕沙化或潛在風蝕沙化地區。
  6. The rock slices are truncated by the pre-bulawayan erosion surface.

    巖片受前布拉瓦約侵蝕面切割。
  7. What ' s more, we put forward some experienced formulas on the basis of the cortical analysis. the result of the research show that by installing diffluent piers with low ridge, we can eliminate the root of oscillatiny water jump, perfect the energy dissipation effect of water jump, also, we can improve the flow condition of down - stream. the fact that the main flow of down - stream is in the middle, not only effectively lower the speed of the bottom flow in the ridge rear, alleviate the erosion to the river bed, but also avoid the heavy wave resulted from the main flow in the surface, thus improve the surface wave of down - stream obviously. we can work out the body style parameters of diffluent piers with low ridge according to the project flow condition and experience formulas, and then reckon the down - stream surface wave condition for the protected building of the down - stream bank

    研究結果表明:設置低坎分流墩后,消除了擺動水躍水舌擺動的根源,提高了水躍的消能效果,改善了下游水流流態。下游水體的主流在中部,既有效的降低了坎后水流底流速,減輕水流對河床的沖刷,又避免了主流位於表面導致波浪過大的結果,下游的水面波浪明顯得到削減。依據經驗公式,可根據工程水流條件設計出低坎分流墩的體型參數,進而估算出下游沿程的水面波浪,為下游岸邊的砌護提供依據。
  8. When erosion ceased, the bed surface was observed to be covered by a thin layer of sticky material.

    當沖刷停止時可以觀察到床面上覆蓋著一薄層粘著物質。
  9. Method 1 : spray erosion, ettringite stay deionized water ( 40 - 60 c ) surface - no small pcb soldering flux residues

    方法1 :噴淋沖刷,用去離子或蒸留水( 40 ~ 60 )清少至pcb釬焊面無焊劑殘留。
  10. So, river capture can be taken as the time and space scale of geomorphologic evolution in quaternary in csmasr it can represent the process of river head wards erosion, expand of lincheng period denudation surface and the broken of yangping period denudation surface

    認為河流襲奪是判斷地貌演進,即臨城期(第四紀)溯源侵蝕與仰平期剝夷面解體破碎的時空標尺,並據此探討了臨城期河流溯源侵蝕的時空格局。
  11. The research results mainly show : ( 1 ) the ecological degradation characteristics of wuxi county include : some soil is thin and barren and its water and fertility conservation abilities are poor, gradual degradation of soil results in decrease of vegetation diversity and the vegetation community structure gradually inclines tc simplicity from complexity. the types of soil and water loss in wuxi county mainly involve surface erosion and gully erosion. according to investigation, surface erosion area occupies 80 % or so or erosion area, in which the slope farmlands surface erosion area accounts for about 70 % of farmland erosion area

    研究結果主要包括: ( 1 )巫溪縣生態退化特徵表現:作為生物生長基質的部分土壤薄而貧瘠,保水保肥能力差,部分地區基巖裸露,土壤的不斷退化導致植物種多樣性減少,植物種群結構逐步由復雜趨向簡單化;縣內水土流失的類型主要包括面蝕和溝蝕兩大類,據調查,面蝕面積占侵蝕總面積的80左右,其中坡耕地面蝕佔耕地侵蝕面積的70左右。
  12. In light of current using situation and drawing on the experience of many scholars researched methods and viewpoints, this thesis made com land, fallow land, orchard, grass land as experimental field in black soil region jlau, which carried out experiment by applying different amounts of n and p fertilization in corn field. by means of collecting the samples of rainfall runoff, erosion silt and surface layer soil before and after rainfall for one year nature precipitation in field, we study the effect of surface runoff on n and p nutrient and fertility degeneration. the results showed : ( l ) there are lots of factors which affect soil erosion and losses of n and p, in which rainfall and rainfall intensity were more important, while rainfall intensity is the most important meteorological phenomena factor

    針對當前黑土利用現狀,本文借鑒眾多學者的研究方法和觀點,在吉林農大黑土區選擇利用方式不同的玉米地、休閑地、果園、草地,在玉米區進行了不同數量的施肥,通過野外試驗,採集一年自然降雨產流及泥沙樣品,同時採集降雨前後的耕層土壤樣品,研究了黑土區地表徑流對氮磷養分特徵及肥力退化的影響,結果表明:土壤侵蝕和氮磷的流失受諸多因素的影響,降雨量、降雨強度是重要因子,而降雨強度是影響農田地表徑流養分流失的最重要的氣象因子,特別是暴雨,暴雨徑流中氮磷濃度較平時高得多;隨作物生長,覆蓋度逐漸增加以及不同利用方式下表現的覆蓋度差異,氮磷流失都表現為顯著的差異。
  13. There are pitting erosion and fatigue effect on the working surface of the rolling hearing because of the chemical and physical reasons, which may cause the advanced failure in bearings

    針對軸承早期失效點腐蝕及疲勞,從材料本身的質量及軸承的工作條件,分析了軸承點腐蝕及疲勞失效發生及發展的原理。
  14. With the research on design and construction specifications of subgrade slope protection, the author in this paper, based on the success experiences of subgrade slope protection all over the country, and considers the advanced technology and experience of abroad, analyzes the slope distress types and causes, and studies systemically the applicability and structure character of these slope protection model, then recommends the typical slope protection model which can used in the most area of our country ; according to the analysis and researches on the types of slope protection, this paper states selection principle of slope protection ; to get the statistical relations between slope surface erosion volumes and related factors, grasp the law of slope surface erosion on the whole, the simulate test of slope surface erosion is done in laboratory ; the drawing library software of typical slope protection is programmed by application the skill of autocad 2000 redevelopment and the tool of vba

    本文結合《路基邊坡防護設計與施工技術規范》課題的研究,在分析總結全國各地邊坡防護設計、施工方面的成功經驗的基礎上,借鑒發達國家公路路基邊坡防護的先進經驗和技術,剖析了路基邊坡的病害類型和原因,對各種類型的適用性及構造范圍進行了系統全面地研究;推薦出了適合我國大部分地區的邊坡防護型式;提出了防護類型選擇的原則;進行了室內邊坡坡面沖刷模擬試驗,得出填方路基坡面沖刷量與有關因素的統計關系,從宏觀上了解坡面沖刷的主要規律;應用autocad2000二次開發技術,運用vba開發工具,開發了邊坡典型防護型式圖庫。
  15. The effect of splash erosion on sloping surface erosion is evident. after the splash erosion was eliminated, the erosion amount was less than half of the amount when the splash erosion existed. it indicated the splash erosion contributed more than 50 % erosion amount, but to the different soil type, the contribution ratio of erosion amount varied, such as the soils derived from granite, the contribution ratio reached 70 %

    在有無紗網兩種處理條件下的產沙實驗表明,雨滴濺蝕對坡面土壤侵蝕量有明顯的影響,消除濺蝕作用後土壤侵蝕量不到有濺蝕作用的一半,說明濺蝕對坡面產沙的貢獻佔50以上,不同土壤類型其貢獻率不同,如結構性較差花崗巖紅壤,濺蝕貢獻率高達70 。
  16. The characteristic of top soil will changed by splash erosion and surface erosion, accordingly to alert the route of runoff and seepage and work to unconsistenty of soil erosion

    棄土場坡面地表土壤特性隨著降雨擊濺和徑流沖刷的作用而發生變化,從而影響區域內徑流和滲流途經,造成坡面產流的不一致性。
  17. Application of surface erosion of sediment yield model to jialingjiang watershed

    侵蝕沉積模型在嘉陵江流域的應用
  18. Surface erosion, surface infiltration and movement of ground water are possible triggering mechanisms of failures in loose filled slopes

    地表水沖蝕與滲入、地下水運動都可能引發鬆散斜坡破壞。
  19. Surface erosion along the road is about twice as high as the maximum rates reported from the most degraded lands in southeast asia

    沿著公路的表面侵蝕率是已報道的東南亞地區退化最為嚴重的土地最大侵蝕率的兩倍。
  20. Results were as follows : surface erosion occurs in vast areas, but in low intensions ; gravitation erosion was caused by rainstorm, and always happened in steep slope with gradient degree more than 35 ; water loss is the most important form in low mountainous areas

    結果表明:坡面面蝕發生范圍廣,程度重,但強度不大;重力侵蝕的誘因是暴雨,多發生在坡度大於35 %的陡坡坡面;水的流失是低山丘陵區坡面水土流失的重要形式。
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