退化度 的英文怎麼說

中文拼音 [tuìhuàdù]
退化度 英文
degree of degeneracy
  • 退 : 動詞1 （向後移動） retreat; draw back; move back 2 （使向後移動） cause to move back; remove; wit...
  • 度 : 度動詞[書面語] （推測; 估計） surmise; estimate
  • 退化 : become vestigial; degenerate; deteriorate; retrograde; devolution; retrogradation; retrogression;...
  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，森林覆蓋率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、棄耕地和灌草坡，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 、速效p和速效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. 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。
  3. With the development of human society, because of the lack of sustainable utilization consciousness, and the eager for quick success and instant benefit, the black earth suffered excessive cultivation and management, causing the reduction of its recycled ability, decrease in organic content, porosity ratio, fertility dropped and the properties of water retaining and water retention, which make the black soil harden and degenerate seriously

    但是隨著人類社會的發展，在缺乏保護和可持續利用意識、急功近利思想影響下，黑土遭到過度墾殖和掠奪式經營，人類對其活動范圍遠遠超過了其再生能力，導致有機質含量減少，肥力下降，孔隙比減小，保水持水能力降低，土壤板結，黑土嚴重退化。
  4. The results are summarized below : 1 ) study on soil science indicates that soil granular structure is the focus adjuster for soil fertility and it affects the space, water - grasp, aeration and anti - erosion of soil. and the percentage of aggregate is one of the key index that decides the speed and extent of soil erosion, hardening and degeneration because the soil degeneration will first lead to the disappearance of crumb - structure. so it is very important that the physical course and character of soil in different land use pattern are realized

    現將主要結果摘要如下： l 、士壤學研究表明，團粒結構是土壤肥力的中心調節器，影響著土壤的空隙性、持水性、通透性和抗蝕性；任何土壤的退化首先將表現出團粒結構的消失；團聚體百分比是決定土壤侵蝕、板結等物理過程速度和幅度的關鍵指標之一，了解不同土地利用和土壤管理方式的物理過程和性質相當重要。
  5. In all hassock communities, species richness was high in ruderals but was low in typical degraded hassocks

    雜類草草從具有較高的豐富皮指數，而演替到較為穩走的退化草叢物種豐富度指數呈下降趨勢。
  6. Based on the project imbrued especially by hunan province construction office, the study of this paper includes four parts as follows : the first part does some simplify on the characters of the rc material under high temperature. after transferring the rc section under fire to equivalent one at normal temperature based on the stiffness and intensity equivalent, the rc members under fire can be calculated as ones at normal temperature

    主要研究內容如下: （ 1 ）基於剛度等效或強度等效原則，根據截面各點材料力學性能的退化，把受火鋼筋混凝土非均勻截面等效成常溫下的鋼筋混凝土截面，使得高溫下構件剛度和強度的計算可按常溫下的計算理論進行。
  7. A new fusion method based on resolution degradation model for panchromatic and multi - spectral images

    基於解析度退化模型的全色和多光譜遙感影像融合方法
  8. By carrying out the experiment of five pieces of brick masonry walls with pilaster under low reversed cyclic loading, including four pieces strengthened with gfs and one piece un - strengthened, the seismic performance, such as the hysteretic behavior, rigidity degradations deformation and energy - dissipation, are studied systematically

    摘要通過1片未加固磚墻體和4片玻璃纖維布加固磚墻體抗震性能的試驗，對墻體的滯回特性、剛度退化性能、變形性能及耗能性能進行系統分析。
  9. The classified result show that the grass land of this region retrogressed badly in 2000 : the appreciable retrogression proportion of the grass land is 15 %, the moderate retrogression proportion is 15 % ; the serious retrogression proportion is 8 % ; the area of desert is 2755. 27km2 and the proportion is 19 %, which had increased about 88. 9 % in eight years

    植被覆蓋度分類結果顯示， 2000年該地區草地退化比較嚴重： 21草地輕度退化， 15的草地中度退化， 8的草地重度退化，土地沙化面積為2755 . 27km ~ 2 ，比1992年增加了88 . 9 。
  10. The percentage of density of s. costatum in phytoplankton rised from 58. 7 % in last year to 60. 0 % in this year, which resulted a decline of the diversity index from 1. 91 to 1. 75, and evenness from 0. 47 to 0. 42, indicating that the biodiversity and evenness of phytoplankton community in zhelin bay became worse and worse, and the structure of community retrogressed

    中肋骨條藻在浮游植物總數量的百分比由第一年度的58 . 7上升到本年度的60 . 0 ，導致多樣性指數由1 . 91減小到1 . 75 ，均勻度由0 . 47減小到0 . 42 。這表明，與上一年度相比，柘林灣浮游植物群落的生物多樣性和穩定性進一步降低，群落結構退化。
  11. Incomplete visual recovery after cataract surgery was due to ( 1 ) refractive error ( incorrect or no glasses ), ( 2 ) armd, ( 3 ) glaucoma and ( 4 ) posterior capsule opacity ( or after - cataract )

    至於手術后視力未能完全恢復的原因，一般為屈光不正（如眼鏡度數有誤或根本沒有配戴眼鏡） 、老年性黃斑退化、青光眼及晶體后囊膜混濁（繼發性白內障） 。
  12. In 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。
  13. Hip dysplasia is a terrible genetic disease because of the various degrees of arthritis ( also called degenerative joint disease, arthrosis, osteoarthrosis ) it can eventually produce, leading to pain and debilitation

    髖關節發育不全是一種嚴重的遺傳疾病，伴隨著于不同程度的關節炎（也可以被稱為退化性關節疾病） ，最終可能會引起犬只的疼痛與衰弱。
  14. In the area of watershed between the yangtze river and the huaihe river, there are a series of ecological environmental issues, such as fragile forest ecosystem, frequent drought damage, lake of water resources, serious soil and water loss and contamination by chemical fertilizer, pesticide and plastic membrane

    摘要分析了江淮分水嶺地區存在的森林生態系統脆弱，易旱多災，水資源短缺，土壤貧瘠，礦山開采過度，水土流水嚴重，化肥、農藥、農膜等農業化學品污染嚴重，農村生態環境退化等生態環境問題。
  15. In allusion to disjoint of damage model in material, member and structure level, two times poa - based global damage model is presented. this model includes synthetically stiffness, intensity and ductibility degrading by equivalent stiffness decay before and after damaged

    針對材料、構件和結構層次的損傷模型存在著脫節問題，本文介紹了基於兩次poa分析的整體損傷模型，通過結構受損前後等效剛度的衰減來綜合考慮結構剛度、強度和延性的退化，並通過算例來驗證該模型。
  16. According to the load behavior and defection degrees of existed reinforced concrete bridge, the calculating modeles for normal section strength and bearing capacity for reinforced concrete bridge are established by the elasticity analysis and nonlinear analysis of grade stiffness degeneration

    根據既有鋼筋混凝土橋梁的受力特點和損傷程度，採用兩種方法：即《規范》法分析理論和分級剛度退化非線性分析理論，分別建立了既有鋼筋混凝土橋梁正截面強度計算和承載能力評定的計算分析模型。
  17. 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。
  18. On this basis, adopt the plural linear regression method, regard peasant ' s per capita income as the dependent variable, per capita agricultural land area, unit agricultural land area chemical fertilizer use amount, agriculture total value account for gdp proportion and land degradation the index data ( land degradation fictitious variable, land degradation percentage and land degradation the array variable of the degree ) as the independent variable

    在此基礎上，採用多元線性回歸方法，以農民人均收入為因變量，人均農業用地面積、單位農業用地面積化肥使用量、第一產業總值佔gdp比例和土地退化指標（土地退化與否的虛擬變量、土地退化百分比和土地退化程度的序列變量）為自變量來分析。
  19. The low - cyclic reversed loading tests of two unbonded partially prestressed concrete frames with different ppr have been carried out. the aseismic behaviors are analyzed and compared, with emphases on failure mechanism, hysteretic property, displacement ductility, energy - dissipation capacity as well as stiffness degeneration, etc. the results show, when designed rationally, the unbonded partially prestressed concrete frames can form beam hinge energy - dissipation machine and total destroy mechanism

    通過兩榀不同預應力度的無粘結部分預應力混凝土扁梁框架結構的低周反復荷載試驗，分析研究了無粘結部分預應力混凝土扁梁框架結構的破壞形態、滯回特性、位移延性、耗能能力、承載力及剛度退化等抗震性能。
  20. The aim of the field experiment was to investigate to what extent such a system could prevent soil degradation resulting from very intensive crop rotations

    此次田間試驗的目的，是研究這一方法能在多大程度上防止由於精細的作物輪作所產生的土壤退化。
分享友人
分享到 Line

分享到臉書