degradation of structure 中文意思是什麼

degradation of structure 解釋
結構降級
  • degradation : n. 1. 降級；免職。2. 退化；墮落。3. 【地質學；地理學】（地表的）剝蝕。4. 【化學】降解，遞降分解（作用）。5. 【物理學】（能的）退降。
  • of : OF ＝Old French 古法語。
  • structure : n. 1. 構造，結構；組織；石理，石紋。2. 建造物。3. 【化學】化學結構。4. 【心理學】（直接經驗中顯現的）結構性，整體性；整體結構。adj. -d ,-less adj.
  1. Fine structure of nanometer anatase titania powder and its photocatalytic activity for phenol degradation

    2粉體的精細結構及其光催化降解苯酚的活性
  2. Quantitative relationships between photocatalytic degradation and structure of azo dyes

    水溶性偶氮染料光催化降解性質的定量構效關系
  3. Grassland degradation, desertification, basification pose great threat on ecological balance. slow development of grassland husbandry cause imbalance in our agricultural structure

    草地退化、沙化、鹽堿化對生態平衡造成嚴重威脅，草地畜牧業滯后使農業結構失衡。
  4. In this chapter we briefly review the structure, biosynthesis, degradation and regulation of collagen in tissues.

    在本章中我們簡要地敘述組織內膠原的結構，生物合成的、降解和調節。
  5. The microbial agent ' s ability in straw degradation was detected by potted experiment and scanning electron microscope. the result indicated that after 15d the structure of straw was destroyed and did not float longer, which did not affect crop ' s rootage ; furthermore the effect on the next crop ' s growth was studied, and the results shown that the microbial agent could accelerate the next crop ' s growth. the strain b3 secreted incretion iaa and aba by tlc and immunological analysis

    通過盆栽試驗和掃描電鏡觀察檢測了秸稈降解劑對秸稈的降解效果，結果發現，該降解劑在15d內就能破壞秸稈的結構，使秸稈不再漂浮，不影響作物的生根；進一步檢測其對后季作物生長的影響發現，該降解劑還能促進后季作物的生長，薄板層析和免疫學檢測均顯示菌株b3分泌了iaa和aba 。
  6. 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。
  7. Large - scale changes of landscape structure cause the degradation of functions of storage and drainage in watershed wetland, which are reflected by loss of flood holding capacity, increase of surface runoff and decrease of confluence time etc

    景觀結構的巨大改變引起了流域濕地貯、排水功能的衰退，主要表現為滯洪、消能空間的喪失，徑流量的增加和匯水時間縮短等。
  8. The basis of these technologies is cellular matrix. it must have biocompatibility, surface compatibility, structure compatibility. biodegradation, and it also can be sterilized. because people can control the synthetic matrix appearance, dimension, intensity degradation rate and three dimensional, they used to use it. but it also brings biocompatibility and infection

    過去所用的支架一般為合成支架，它的優點是人們可以隨心所欲地控制支架的形態、尺寸、強度、降解時間、降解速度及三維結構，並可成批生產，但也帶來了諸如：生物不相容性，感染問題等，而且合成支架在表面相容性和結構相容性上有諸多不盡如人意之處。
  9. Based on the hydrodynamics energy transport model, the degradation induced by donor interface state is analyzed for deep - sub - micron grooved - gate and conventional planar pmosfet with different channel doping density. the simulation results indicate that the degradation induced by the same interface state density in grooved - gate pmosfet is larger than that in planar pmosfet, and for both devices of different structure, the impact of n type accepted interface state on device performance is far larger than that of p type. it also manifests that the degradation is different for the device with different channel doping density. the shift of drain current induced by same interface states density increases with the increase of channel do - ping density

    基於流體動力學能量輸運模型，對溝道雜質濃度不同的深亞微米槽柵和平面pmosfet中施主型界面態引起的器件特性的退化進行了研究.研究結果表明同樣濃度的界面態密度在槽柵器件中引起的器件特性的漂移遠大於平面器件，且電子施主界面態密度對器件特性的影響遠大於空穴界面態.特別是溝道雜質濃度不同，界面態引起的器件特性的退化不同.溝道摻雜濃度提高，同樣的界面態密度造成的漏極特性漂移增大
  10. The seismic behavior of longitudinal middling - high r. c shear wall with frame column is discussed through model experimentations and finite element methods in this paper, after taking frame - shear wall structure of a main factory building of the large capacity power plant as experimentative prototype. the major work as follow : in order to appliance pseudo static test, the longitudinal middling - high r. c shear wall with frame column in the large capacity power plant ' s main factory building has been simulated to a model structure with 1 / 15 reduced - scale. the contents of study are process of cracking, course of damage, skeleton curve, rigidity degradation, ductility characteristic etc. that the seismic behavior of this kind of middling - high r. c shear wall is excellent has been proved by chubby hysteretic curve and fine capacity of energy dissipation

    本文以某大型火電廠主廠房縱向框架一剪力墻結構為原型，通過模型試驗和有限元分析，研究了縱向帶邊框柱中高剪力墻結構的抗震性能問題，主要內容有：選用1 15縮尺比把某大型火電廠主廠房縱向帶邊框柱剪力墻原型結構模擬為一個模型結構，並進行了偽靜力試驗，研究了這類縱向帶邊框柱中高剪力墻結構的開裂與破壞過程、骨架曲線、剛度退化、延性性能等問題，試驗滯回曲線飽滿，消能能力強，說明此類中高剪力墻的抗震性能較好。
  11. Based on above - mentioned analysis, the strategy and measures to prevent the soil fertility quality degradation of artificial picea mature forest and improve the stand ecological environment were put forward, including the rational management of inter - cutting down and fostering after artificial picea forest matured. because conifer - hardwood forests generally contain more tree species than pure coniferous forest, and their structure also is more complex, forestation in subalpine of western sichuan should be conifer - hardwood forests

    林地土壤有機質主要來源於凋落物的分解，並受其分解速率的控制，解決當前人工成熟林地土壤退化的主要措施應為林地凋落物分解創造條件，即因地制宜地對成熟人工林進行間伐或輪伐，當前在該區域造林應避免營造針葉純林。
  12. The crystal pvc was crashed by jet - mill to prepare nanocrystal pvc. the crash, degradation and the change of morphology and crystalline structure changes of pvc was studied by ftir, sem, dsc, tem

    用氣流磨對結晶pvc進行粉碎，制備了納米晶pvc ，研究了在高速氣流作用下pvc的破碎降解、顆粒形態和微晶結構變化。
  13. The crystal pvc is crashed by jet - mill to prepare nanocrystal pvc. the crash, degradation and the change of morphology and crystalline structure changes of pvc is studied by ftir, sem, dsc, tem. the self - plasticization of nanocrystal pvc is studied, too

    用氣流磨對結晶pvc進行粉碎，制備了納米晶pvc ，研究了在高速氣流作用下pvc的破碎降解、顆粒形態和微晶結構變化，研究了納米晶pvc對pvc的增塑作用。
  14. 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。
  15. Secondly after damage model of structure is analyzed and considering of rigid degradation in crossing section of structure, the damage index is defined by rotation rigid of element side and the model of damage of crossing section is developed. meantime, the damage model of structure is built by idea that damage index of elements endowed weight are added linearly

    其次，在對現有的結構損傷模型分析之後，考慮到構件截面恢復力模型中卸載剛度的退化現象，作者基於構件端部截面的轉動剛度定義了構件的損傷指標，建立了構件層次上的損傷模型。同時考慮到結構損傷前後固有頻率的變化，運用線性加權求和的思想建立了結構層次上的損傷模型。
  16. ( 5 ) simplified calculation method without considering degradation of bond strength and response surface method using analysis output by fem is carried out to calculate the time - dependent reliability of corroded structure separately. the influence of chloride diffusion rate and steel corrosion ratio on structure reliability is discussed. the applicable scope and the calculation difference between the two methods are compared

    （ 5 ）分別採用不考慮混凝土與銹蝕鋼筋之間粘結力減弱的簡化方法和利用非線性分析結果的響應面方法計算銹蝕鋼筋混凝土結構的時變可靠度，研究了氯離子侵蝕速率、鋼筋銹蝕率對結構可靠度的影響，並分析比較了這兩種可靠度計算方法的適用范圍和計算差異，為混凝土結構基於可靠度的耐久性鑒定提供了實用判別方法。
  17. Also, by using the hot - carrier immiunity analog circuit structure, the output resistance degradation caused by the hot - carrier degradation is deeply supressed and the small - dimensional effect can be improved shown by the spice 3f5 simulation results, and the gain degradation of a cmos o peration amplifer after 10 years operation decreases from 23 % to 10 % with this structure according to bert2. 0 simulation

    而串聯常開n mosfet的模擬電路結構可使n mosfet輸出電阻的退化大為減小同時還可改善器件小尺寸效應引起的輸出電阻下降：採用該結構的os運放與未採用的相比，其十年工作后增益的退化由23下降為10 。
  18. The harms of soil compaction represented briefly as soil bulk density and penetration resistance increased, macroporosity decreased, soil physical, chemical and biological properties deteriorated, which effected on crop growing and soil structure degradation, and has become one of the principal obstacle factors for sustainable development of agriculture

    土壤機械壓實危害主要表現在土壤容積質量和機械阻力增加，大孔隙減少，土壤物理、化學、生物性狀惡化，進而影響作物的生長發育，土壤結構發生退化，已成為當前制約農業可持續發展的障礙因素之一。
  19. The mechanic character, destroying pattern, the ductile and dissipation energy capacity of this composite structure under the earthquake have been clarified. the stiffness degradation, natural frequency, damping ratio of this structural system with the development of intensity of earthquake have also been investigated. with consideration of the top displacement, drift of story and micro - strain of longitude steel bars, the equivalent shell wall method has been presented in order to simplify the design of such type structure

    通過試驗，掌握了該結構體系在水平地震荷載作用下的受力特點、變形與耗能性能、結構的破壞形態等力學指標：得到了結構在不同地震烈度條件下的剛度變化、自振頻率、阻尼比等動力特性；綜合結構的頂點位移、層間轉角以及鋼筋的微應變，提出了適合於該結構體系簡化設計的「等效剪力墻法」 。
  20. Long - span bridges service under long - term transportation loads, strength degradation of structure materials because of fatigue cumulative damage is key factor of durability

    大型鋼橋是在交通載荷作用下長期工作的，疲勞累積損傷引起結構材料強度逐漸退化，成為大型鋼橋耐久性的關鍵因素。
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