退化變態 的英文怎麼說
中文拼音 [tuìhuàbiàntài]
退化變態
英文
degenerative metamorphosis-
The metamorphous graphite in the section center of heavy section s. g. iron castings is superspheroidal graphite, and not the product of degeneration along the direction from shperoidal graphite to vermicular or flake graphite
大斷面鑄件中心的變態石墨是過球化石墨，而不是球狀石墨向蠕蟲狀石墨或片狀石墨方向衰退的產物。The first geologic reason for degeneration of the eco - environment in the headwater area of the yellow river is that the increase of the recent geologic function caused desertification and grasslands resource decreased and underside changed, destroied the balance of water - air - heat in the area ; the second is that the water environment changes by the degradation and atrophy of frozen earth cause multilayer and synthesis cause of formation degeneration of the eco - environment ; the third is that the man and rats function accelerated degeneration of the eco - environment in the headwater area of the yellow river
摘要黃河源區生態環境惡化的地質原因之一是現代地質作用增強，形成以荒漠化為主的草地資源退化與下墊面改變，地區水氣熱平衡破壞；二是因凍土退化、萎縮，引起水環境變異，導致多層面與綜合成因的生態環境惡化；三是人為及鼠類活動對源區生態環境惡化起著推波助瀾的作用。Five vegetation communities : herbosa, shrubs, coniferous forest, theropencedrymion, and evergreen broad - leaved forest in the red soil region of the lijiang valley are selected as the five successive stages of the typical restoration process of degraded ecosystems to study variation of structure and biomass of the vegetation of the five different stages
摘要利用時空替代原理，選取灕江流域紅壤區退化生態系統恢復過程中具有代表性的草叢、灌叢、針葉林、針闊混交林、常綠闊葉林5個階段作為演替序列，研究自然恢復過程中各演替階段的植被結構動態和生物量變化。Simultaneity, through contrast analysis validate that antiseimic capacity of expansion web is better than that of steel web. therefore, based on the experiences summed up by precedence, the formulation for calculating the crack load and limit load of brick masonry house reinforced by expansion web is advanced, which provides project reference. based on the analysis and studies of masonry shearing strength, test of prestressed single brick masonry wall, and test of prestressed brick masonry house models, and ect, the article has carried through several aspect research as below : 1. a series of experiment on material capability of expansion web, including intensity of single thread and expansion web, ect ; 2. research on influence of loading and destroy of masonry brick building reinforced by expansion web under lowcyclic loading ; 3. study of impact of expansion web on ductility, energy dissipation, intensity, ect under the same situation as above ; 4. put forward computation formulation of masonry brick building reinforced by expansion web
本著以上的研究目的，本文在分析和借鑒前人砌體抗剪強度理論、預應力單片墻試驗研究、預應力模型抗震性能試驗研究等基礎上，進行了以下幾方面的研究工作: 1 .作為一種新型結構材料擴張網，進行了一系列的材性試驗（單絲強度、網片強度和在砂漿中被約束條件下的網片強度及其相應的彈性模量） ； 2 .研究了水平荷載往復作用（低周交變）下，普通鋼絲網和擴張網砂漿對砌體結構抗裂及承載能力和破壞形態的影響，並將這兩種材料的加固效果進行了對比； 3 .上述狀態下，兩種網片水泥砂漿對砌體結構變形、延性、耗能、剛度退化等抗震性能的影響及其影響效果的比較； 4 .提出擴張網水泥砂漿加固砌體結構的抗剪強度計算建議公式。Due to the influence of climate drought and human activities, the ecological environment of qinghai province is in an increasingly grave condition, namely, climate abnormal events occurring frequently, grassland degenerating, ground sanding, glacier shrinking, water level of lakes descending and river runoff decreasing, and so on. in the basis of extensively collecting and analyzing the data of qinghai ecological environmental factors such as climate, water resource and grassland resource etc., the further basic research is performed on the ecological environment characters of main climate factors, surface runoff, water resource, lcc and their correlation to coordinate with the basic, strategic and precursory research for the development of china west part and provide the scientific foundation for corresponding development both ecological environment and social economy, and persistent utilization of natural environment resource
本研究針對當前在氣候乾旱化和人類活動的共同影響下青海省生態環境中氣候異常事件即氣象災害頻繁發生、草場退化、土地沙化、冰川萎縮、湖泊水位下降和河流流量減少等生態環境退化現象日益嚴重的實際，在廣泛收集和整理青海省氣候、水資源、草地資源等生態環境因子基礎資料的基礎上，對青海的主要氣候要素、地表徑流、水資源、植被的演替及其相互間的關系等主要生態環境變化特徵進行了基礎性的研究。The tong - term tune bests of pinus yunnanensis management lead to bio - diversity decrease, diseases and insect pests damage, genetic degradation, and productivity decline
摘要長期以來，雲南松的純林經營使得生物多樣性降低、林分穩定性變差、遺傳品質退化、林分生產力下降，從而導致生態系統功能衰退。Restoration ecology is ranked as one of three hotpots in biological realm as well as biological diversity and global climate change in recent years, which is one fresh branch of modem ecology. its primary research includes : the cause of degradation in ecosystem, techniques and methods of degraded ecosystem restoration and reconstruction, process and mechanism of ecology, research objectives of which are the destroyed ecosystems under the stress of natural catastrophes and human activities
恢復生態學與生物多樣性和全球氣候變化並列為生物領域的三大研究熱點，它主要研究生態系統退化的原因、退化生態系統恢復和重建的技術與方法、生態學過程與機理的科學，是現代生態學的年輕分支之一，其研究對象是一些在自然災變和人類活動壓力下受到破壞的生態系統。At the same time, the carbon cycle at mid - latitudes of north hemisphere still remains unknown, which leads people to nowhere in gaining a deep understanding of the mechanism of global change. in xilin river basin, inner mongolia, which is right located at the mid - latitudes of north hemisphere, the high speed of social - economic development shows high rate and strong intensity to land use / land cover change in the past two decades. in this paper, remote sensing, gis and ecological modeling techniques were combined to study the land use / land cover change and carbon cycle of xilin river basin
文章首先對內蒙古錫林河流域四個時期的landsattm / etm +影像進行土地利用/土地覆蓋分類、成圖；通過對比，分析了錫林河流域近20年的來的土地利用/土地覆蓋變化；並進一步運用gis方法研究了錫林河流域草地退化的演化路徑；最後運用century模型模擬了內蒙古錫林河流域大針茅草原、羊草草原的碳循環過程，繪制了其碳循環模式圖；並進一步分析了錫林河流域典型草原生態系統對大氣碳庫的源/匯功能。The structure of oviduct the morphovar of oviduct was different evidently at the immature, spawing and catagenetic stages. there were the characteristic of histological structure of oviduct. 1
結果如下：一）輸卵管的基本組織結構和發育變化輸卵管在性未成熟期，性成熟后的產卵期及退化期的發育形態有明顯地區別。In original and jamming slightly vegetation, because dead roots, branch and leaves back to soil, soil organic matter higher, soil available phosphorus higher, too ; chemical and physical characters of soil were stabilization. the reason were original vegetation have more species and structure of community was stable. the degradation of fertility and structure of soil in secondary vegetation was influenced by change with structure and form of community
在人為干擾小的原生性森林，植物種類豐富，群落結構穩定，植物死根系和枯枝落葉全部回歸土壤，土壤有機質含量高，養分呈有機態為多，故有效磷較高，土壤理化性質較穩定；次生植被群落土壤結構和肥力的退化是由於群落組成和結構的改變導致枯枝落葉成分和土壤發規白山地還小問沙消民俗一非定俗地征王卿喬忡旺w比收財育環境差異而引起，次生植被土壤的退化狀態隨植被退化程度不同而有差異。The others showed partly decreased, but the degradation of vegetation were obviously in lower reaches of tarim and cherchen river ; in the mountain area of southern xingjian, the forest area were increased, and the others decreased ; in northern xingjian, both the mountain and the plain area increased. they showed the decrease of desert and the increase of oasis ; the change of vegetation cover in the hexi corridor - alax desert were not obviously ; but in chai - damu basin, the area of desert and low cover grassland increased, the others vegetation decreased, especially in the high cover grassland. that showed the great degradation of ecosystem, and the most of degradation was shown in the north hillside of the arjin mountain and qi - lian mountain
而從各個分區來看，情況不盡相同:南疆地區平原區綠洲面積擴大，荒漠面積基本不變，其他類植被面積不同程度縮小，而在塔里木河下游、車爾臣河下游植被退化;南疆山地森林面積略有增加，其他類植被面積略有縮小;北疆的平原區和山區的植被狀況均有改善，表現為荒漠面積縮小，綠洲面積增加;河西走廊一阿拉善地區總體變化不大;但是柴達木盆地的荒漠面積、低覆蓋度草地增加，其他類植被，尤其是甚高覆蓋度植被（草甸）的面積縮小，表明該地區的生態環境退化，而退化表現的主要地區在環柴達木盆地的阿爾金山和祁連山的北坡。( 2 ) based on deterioration model of owerage bond stress of beam reinforcement accounting for effect of axial compression ration and number of displacement loops, and stress - strain relationship of the concrete in the joint core accounting for effects of both softening and confinement, the modified compression field theory was employed to simulate behavior of the joint core under loading reversals. analysis by means of the program jap on the tested specimens in this paper and those obtained from other researchers produced consistent results
根據本文建立的考慮軸壓比和位移循環次數影響的梁筋平均粘結應力退化模型和考慮軟化效應、約束效應的核心區混凝土應力應變關系，通過在試驗中得出的節點核心區混凝土、箍筋、節點正面、背面柱筋在反復荷載下的受力特點，利用斜壓場理論模擬節點核心區在反復受力過程中的受力狀態。Glutathione is the body ' s key defence for detoxifying harmful compounds implicated in cancer, diabetes, aging and other diseases and degenerative conditions
谷胱甘肽有廣泛的有益於人體健康的作用，能夠去除與癌癥、糖尿病、衰老及其他疾病有關的有害化合物的毒性，改善退化變性的狀態，是機體關鍵防禦衛士。From the change of the analysis target of the water and the sediments in these years, we can see that these measures that take place in these years only make a little improvement on the degradation problem. these measures cannot change the trend of wetland ecosystem degradation
根據對玄武湖水體和沉積物的監測指標的多年變化分析發現，玄武湖近年來所採取的整治措施對于濕地的污染退化問題只起了短暫的改善作用，無法扭轉整個濕地生態系統退化的趨勢。Karst ecosystem is a kind of vulnerable ecosystem, its vulnerability including mainly : 1 environment capacity is small, vegetation is difficult to recover after having been destructed, hydrologic movement is rapid and floods and droughts often occur ; 2 vegetation growth depends on the conditions of eco - environment overly, which are affected by environment obviously ; 3the positive evolve of eco - environment relies on the recover of vegetation, 4the methods of water resource use and land use lack of rationality. these vulnerabilities are be magnified by climate changes
巖溶生態系統是一種脆弱的生態系統，它的脆弱性主要表現在：環境容量小，植被遭破壞后很長時間才能恢復，以及水文過程變化迅速，旱澇時常發生；植被生長過度依賴于生境條件，但生境條件受到環境影響明顯；生態環境的良性演化依賴植被的恢復；水資源利用與土地利用方式間缺乏合理性，如刀耕火種、過渡開墾造成生態環境中種子庫嚴重丟失，物種多樣性受到影響，植被演化趨于單一或種群退化。Based on the experiments under low reversed cyclic loading, failure pattern, hysteresis curves, skeleton curves, restoring force model, displacement restoring capacity, ductility and rigidity degeneration of prestressed concrete beams with high ppr are studied systematically
摘要基於低周反復荷載試驗，對高預應力度混凝土梁的受力過程、破壞形態、滯回曲線、骨架曲線、恢復力模型、變形恢復能力、延性、剛度退化等抗震性能進行了較深入的研究分析。Variaton of combined humus in soil organo - mineral complexes in process of gras sland restoration
退化草場恢復時土壤有機礦質復合體中結合態腐殖質變化In this paper, by the accelerated corrosion methods of man - made climate and galvanostatic to corrode the bars, experiments were carried out to study the different structure behavior of corroded reinforced concrete beams, and it was learned that the condition of man - made climate was closer to practice than galvanostatic method
摘要通過採用人工氣候和通電快速銹蝕模擬方法，對銹蝕鋼筋混凝土梁進行試驗，以對比研究結構性能退化機理，結果發現銹蝕后鋼筋混凝土梁的強度、延性和破壞形態發生了急劇變化，而且人工氣候環境下的混凝土內鋼筋銹蝕比通電條件能更好的貼近實際情況。Basis on the statu quito, the basis of the selecting title, the main theoretical foundations and the researching approachs, the thesis analyses the advantage of the development animal husbandry and the existing questions in jiuquan oasis. the author thinks the restricting factors in animal husbandry development are the limited meadow area, the serious soil erosion, the land determinations, the worse management regime, the severe hazard on mice, the fluctuating product in meadow and so on. and then the author has appraised the ecological fragility in jiuquan oasis
論文在論述了酒泉綠洲畜牧業的研究現狀、選題依據、主要理論基礎及研究方法的基礎上，分析了酒泉綠洲畜牧業發展的有利條件，認為人工、半人工草場面積小，水土流失嚴重，土地退化，草畜比例失調，草場退化，草原管理制度不健全，鼠害猖獗，牧草產量年度變化大，產草量和草場利用季節不平衡，生產經營理念落後，成為酒泉綠洲畜牧業發展存在的主要問題，並對酒泉綠洲的生態脆弱性進行了評價。The key to the control of the soil erosion in the valley is to bring human activities into harmony with the nature and conservation of soil and water by replacing unreasonable production and exploitation patterns with ecology - friendly ones and by restoring and reconstructing the ecologicat systems, which are now stitl deteriorating
防治長虹上游水土流失關鍵是通過改變人類不合理的生產方式和開發方式，引導人類活動向與自然協調、與水土保持相一致的方向發展，並對退化生態系統進行恢復與重建。分享友人