退化作用 的英文怎麼說
中文拼音 [tuìhuàzuòyòng]
退化作用
英文
catagenesis-
After analyzing purple soil sampled from neijiang, leshan ofsichuan provinec and yuanmou of yunnan province, the contrast results of microbe quantity feature between surface and subsurface purple soil were obtained as follows. the content of soil organic matter, total and available nitrogen, phosphorous and potassium of surface was higher than subsurface, not relating to the type of purple soil and soil utilization way. the quantity of microbe _ bacteria, actinomyces and mould in surface purple soil was higher than subsurface, which indicated that the organic matter and airy condition in surface soil was more suitable for microbes growing. there was the same tendency in profile change of microbe quantity in purple soil located in temperate _ humid climate of sichuan basin in contrast with dry _ hot climate of yuanmou, yunnan. the nutrient situation of purple soil in sichuan basin shown that state of surface was better than subsurface, while in yuanmou of yunnan the state was on the contrary due to the degradation of surface soil
實驗室對四川內江、樂山和雲南元謀不同類型紫色土表層和亞表層微生物數量特性的比較分析表明：土壤有機質、氮磷鉀全量及其速效量均表現為表層高於亞表層，與紫色土類型和利用方式無關；三大類土壤微生物細菌、放線菌和黴菌數量均表現出表層高於亞表層，表明紫色土表層的有機質和通氣性優于亞表層，適宜於這三大類微生物生長；溫濕氣候條件下的四川盆地和乾熱氣候條件下的雲南元謀其紫色土微生物數量的剖面變化具有相同的趨勢，唯土壤營養狀況在四川盆地紫色土中表現為表層優于亞表層，而在雲南元謀紫色土中由於表層土壤的退化作用表現為亞表層優于表層的相反情況。Lots of information suggest that the metamorphism process of this area are from granulite facies to amphibolite facies and the retrograded metamorphic path is basically a cw nearly isothermal decompressional evolvement trend
各種信息表明本區的變質作用是由麻粒巖相退變到角閃巖相。退變質軌跡基本上是一個順時針近等溫減壓型演化趨勢。Based on the studies of petrotexture, structural deformation and the relevant metamorphism, this paper indicates that this peridotite massif is the product of ultramafic magma cumulated at the crust - mantle transtion zone and has undergone the early stage of plastic deformation under the condition of granulite facies （ 800 ） and late ductile shearing at amphibolite and greenschist facies in relevance to uplifting
本文通過巖體的結構、構造變形及相應的變質作用研究，提出了該橄欖巖體是由超基性巖漿在殼幔過渡帶結晶而成，並經歷了與圍巖一致的麻粒巖相（ 800 ）條件下的早期塑性變形以及角閃巖相和綠片巖相退化變質條件下與逆沖上升有關的韌性剪切變形。On the basis of the government ' s policy of revitalizing the northeast old industrial base, preventing black earth from degeneration and strengthening protection of black soil in china, according to analysis of the distribution of black soil and the present research of black earth degeneration, the author summarized the main degradation type of black earth, revealed main reasons for its degradation, put forward some measures to prevent black earth from degrading and protecting black earth in addition, the author put forward the new and further direction to study the degradation of black earth on the basis of the existing study, and hope to play a role of inducing purpose in assuring sustainable utilization of black earth resource and furthering study
在國家振興東北老工業基地和防止黑土退化及加強黑土保護之際，通過對黑土分佈狀況和黑土退化研究現狀的分析，總結出黑土退化方式，揭示了其退化的主要原因，提出了防止黑土地退化和保護黑土地的措施，在現有研究的基礎上提出黑土退化研究的新方向，希望能為黑土資源可持續利用和進一步研究起到拋磚引玉的作用。The role of dopants and contaminants in degradation cannot be ignored.
雜質和污染對退化的作用不能忽視。The immature mice were also used to see the expression and regulation of stat3 by gonadotrophin treatment. additionally, the expression and regulation of stat3 were examined during the formation and regression of corpus luteum
此外，還研究了促性腺激素對性未成熟小鼠子宮中stat3表達和激活的調節，並對stat3在小鼠黃體形成和退化過程中的作用進行了研究。In typical watershed, quxi watershed, the result of external forcing, submerge and migrant, is the resource change of slope cultivated lands, economical forest, vegetation, water, habitant etc. of the ecosystem, and the changes of demand for food supplies, energy resource and education
移民區典型小流域? ?曲溪小流域，受淹沒、移民2個驅動力的作用，耕地、經濟林、植被、水、棲息地等資源發生了顯著變化，系統的糧食、能源、教育需求也隨之而變，在內在反饋機制的作用下，導致系統輸出為水土流失加劇、生物多樣性受到破壞、土地退化嚴重等。In present dissertation, most stirpses are repartitioned and redefined, and the structure characteristic, course of formation, cause of formation, function and risk of stirpses are analyzed. the main conclusions are : [ 1 ] rapid development of corporations engenders urgent demand of financing, conflict between capital market imperfection and demand of financing leads corporations to control listed corporations by purchasing " shell " and enhance it ' s financing capability ; [ 2 ] two kinds of pricing institution of stock provides stirpses for controlling listed corporations by low cost, monitoring institution imperfections provides corporations for operating listed corporations. adjust of national assets provides more " shells " ; [ 3 ] more private corporations purchase listed corporations, some of them form stirpses ; [ 4 ] stirpses have positive influence about adjusting industry and enhancing capital market financing function ; [ 5 ] stirpses magnify financial risk by controlling listed corporations, and transform listed corporations from shareholders benefit to block shareholder benefit, having tendency of infracting shareholders benefit
本文主要的結論： [ 1 ]中國企業的迅速發展對融資有迫切的要求，中國國內資本市場發展不完善與這種強烈的融資需求的沖突導致了企業尋求通過買「殼」的方式控制上市公司，以此來提高自身的融資能力； [ 2 ]中國上市公司股票的兩種定價機制為「系」低成本控制上市公司提供了可能，監管機制的不完善為「系」提供了操縱上市公司的空間，國有資產在調整過程中從部分競爭行業退出，為資本市場提供了一定數量的「殼」資源； [ 3 ]民營企業紛紛買「殼」上市，在這個過程中，部分實力突出的企業形成了「系」 ； [ 4 ] 「系」現象對進行行業整合、提高資本市場融資能力等方面起到了積極的作用； [ 5 ] 「系」通過對上市公司進行的操縱放大了金融風險，將上市公司的股東利益最大化變為大股東利益最大化，存在著侵害小股東利益的潛在傾向。Distinct mankind ' s effect of the 60 ’ s, because of greatly opened up strategy implementation in the west in the near future, retreating the straw and limiting to pasture and usage of trickle irrigation, that each steps such as above and so on wholly shall benefit to the farming water amount to be saved, thereby add into the amount of flow in lake
不同於上世紀60年代的人類活動作用的影響，近期由於西部大開發戰略的實施，退地還草、限制放牧、滴灌農業的推廣等措施都將有利於流域農業耗水量降低，從而增加入湖徑流量。這一階段湖泊水面急劇增加是氣候干濕變化的自然現象，與農業節水因素沒有顯著的關系。There are a lot of categories of the small business enterprise gathering cluster, in the united states, italy, switzerland, japan, china etc. the small business enterprise gathering cluster that stride over several industries section can adapt variety and resist the decay of economic period
這些中小企業集群的具體作用體現在：能夠使有限資源高效聚集起來，以滿足城市與地區經濟發展；中小企業集群政策可以為實現產業目標和重振產業服務；跨越多個產業部門的中小企業集群能更好地適應變化和抵抗經濟周期中的衰退。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。With advantageous water, soil and organisms resources, the dadiwan culture, the yangshao culture, the longshan culture and the xiashang culture developed, original settling - down dry farming culture formed gradually, which laid sound foundation for agriculture civilization in the weihe valley ; among which, land use of arable farming was replaced largely by pastoral farming in the mixed area of agriculture and animal husbandry in north weihe region between 4 000 - 3 000 a b. p., because of dry and cold weather resulted in environment deterioration and soil degradation. at the beginning of 3 100 a b. p.,
在8500 3100abp全新世大暖期，渭河流域水、土、生物資源條件優越，人類發展了大地灣文化、仰韶文化、龍山文化和夏商文化，逐步形成了原始定居旱作農業類型文化，從而奠定了渭河流域農業文明的基礎，其間在4000刁000ab衛，渭河流域北部的農牧交錯帶，由於氣候的逐漸冷干化，導致水、土、生物資源退化，造成旱作農業土地利用方式由遊牧業取而代之。The causes of devolution, desertation, salinization and solonization were analysed in two aspects : it is apparently due to overpopulation, overstocking, unreasonably using, lacking of new technique, frequent occurrence of nature disaster, small area and low output of artificial pasture and semi - artificial pasture, but the more deeply reason was that the function of grassland was not completely understood only emphasizing the economic efficiency and regrowthful resource in grassland while the ecological efficiency and its potential use were neglected
本文主要從兩方面對草原三化進行了分析，首先從表面上看有以下幾方面原因，人口多、牲畜數量多、草原利用不合理、新技術推廣差、草原自然災害頻繁、人工半人工草地少產量低。其次又挖掘了草原退化的深層原因，第一對草原資源的功能和作用的認識具有片面性，只重視草原的經濟效益，卻忽略了它的生態效益；只重視草原資源的再生性，卻忽略了它的適宜可利用性。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。Improve the management level of coscon, meet the increasing demands in the capital market ; enhance the professional business ability, strengthen and develop the global container shipping network ; implement active sales policy ; solidify, penetrate and extend effective market ; equally develop fleet management and managing fleet, route extension and reduction ; build effective customer service system, win the market by “ high quality ” service ; bring the advantage of alliance cooperation into full play, improve the profit - making ability ; strengthen the use of information system, boost “ digital ” development ; implement the strategy of “ talent for strong business ”, train responsible company and responsible staff ; establish a complete financial and accounting system of capital operation to improve the level of financial management ; optimize the domestic and overseas management pattern, form a resultant force of the global container shipping network ; expand the scale of shipping capacity, enhance the company ' s competitive edge ; finish the transformation from sheer production operation to the double operations of capital and production, maintain the sound and stable development of business
提高公司管治水平，滿足不斷提升的資本市場要求；增強專業化經營能力，鞏固發展全球集裝箱網路化運輸；實行積極營銷政策，鞏固、滲透和拓展有效市場；實現船隊經營與經營船隊並舉及航線擴張與退出並舉；構築有效的客戶服務體系，以「高品質」服務贏得市場；發揮聯盟合作優勢，提高盈利能力；堅持強化運用信息系統，催生「數字化」 ；實施「人才強業」戰略，打造責任公司、責任員工；建立完善資本經營財會體系，提高財務管理水平；完善海內外管理模式，形成全球集裝箱運輸營銷網路的合力；擴大公司運力規模、增強公司競爭實力；完成由單純的生產經營向資本經營和生產經營並舉的轉變，實現公司業務的健康、穩健發展。And climatic variation is a main factor affecting desertification. the sustained period of water deficit is a direct cause of desertification in arid and semi - arid areas. the tectonic activities of lithosphere control the distribution of desertification by constructing geomorphology
提出了自然作用在土地荒漠化演化中佔主導地位，其中，氣候變化是控制土地荒漠化進退的首要因素，地表水持續虧損則是導致乾旱、半乾旱地區土地荒漠化發展的直接原因。For strained si pmosfets, the hole mobility is not only determined by the tensity of strain, but also related to the strain types, which are uniaxial compressive strain and biaxial tensile strain. when electric field is high enough, the hole mobility will be deteriorated in pmosfets under biaxial tensile strain, however, in the case of uniaxial compressive strain, the deterioration will never occur
經模型分析發現，應變硅pmosfet空穴遷移率與應力作用方式有如下關系:當橫向電場較高（ > 5 105v / cm ）時，雙軸張應力作用下的應變硅pmosfet的空穴遷移率將發生退化，而單軸壓應力器件則不會受到影響。We will mount the historical photographs on acid - free or low alkaline paper. then the photographs can be stored inside archival boxes which are acid - free or low alkaline. this can prevent the contamination of the surface of photographs by dirt particles and wrapping paper that may lead to the chemical reaction like oxidation, yellowing and colour fastness
部份藏品如歷史圖片及明信片更需要特別的保護，博物館會使用不含酸性或低鹼度的紙張及紙板裝裱歷史圖片，再存放于不含酸性或低鹼度的紙盒內，防止圖片上藥膜受到空氣及一般包裝紙的雜質污染而產生化學作用，如圖片氧化、變黃、退色等。The degradation of the electrical characteristics in sic pn junctions irradiated by neutron is attributed to the recombination centers and the electric field effect on the thermal emission of traps within the depletion region. the relationship of the ideality factor to the applied voltage is theoretically studied
提出了中子輻照下sicpn結電特性退化的新的理論， pn結耗盡區中的輻照陷階在耗盡區電場的作用下熱發射效應得到加強，從而導致pn結正偏和反偏時的復合電流和產生電流的改變。Severe fires can often cause changes in successional rates and soil hydrologic functions, degradation of soil physical properties, alter c : n ratios, and result in subsequent nutrient loss through accelerated erosion, leaching or denitrification, and alterations in microbial populations and associated process can occur
高強度火燒往往能引起演替頻率的改變，土壤物理性質退化，水文功能發生改變，改變c n比，加劇侵蝕、淋溶和反硝化作用，導致養分流火，微生物數量及其相關過程發生變化。分享友人