最壞的材面 的英文怎麼說

中文拼音 [zuìhuàidecáimiàn]
最壞的材面 英文
worst face
  • 最 : 副詞（表示某種屬性超過所有同類的人或事物） most; best; worst; first; very; least; above all; -est
  • 壞 : Ⅰ形容詞1 （不好的; 惡劣的; 使人不滿意的） bad 2 （表示程度深 多用在表示心理狀態的動詞或形容詞後面...
  • 的 : 4次方是 The fourth power of 2 is direction
  • 材 : 名詞1 （木料） timber 2 （泛指可以直接製成成品的東西; 材料） material 3 （供寫作或參考的資料） ma...
  • 面 : Ⅰ名詞1 （頭的前部; 臉） face 2 （物體的表面） surface; top 3 （外露的一層或正面） outside; the ri...
  1. This thesis also first presents the most straightforward and the most effective evaluation indexes on the qualities of crack filling and pothole repair, compares and analyzes the properties, the applicable situations, the strong and the weak points of crack filling materials ( such as hot asphalt cement, emulsified asphalt, modified asphalt, etc. ) and pothole repair materials ( such as hot - mix asphalt mixture and cold - mix asphalt mixture ). on the basis of the permanent demands on repair, this thesis sums up and lists the maintenance steps in crack filling and pothole repair, and advances the procedure designs to be directly adopted by maintenance workers of asphalt roads

    首次提出了評定瀝青路面裂縫填封和坑槽修補質量好壞最為直接、有效的評價指標，分別對用作裂縫填封材料的熱瀝青、乳化瀝青和改性瀝青及用作坑槽修補材料的熱拌瀝青混合料和冷拌瀝青混合料的性能、適用場合及優缺點進行了比較分析，並按永久性修補要求，歸納提煉了裂縫填封和坑槽修補的工藝步驟，提出了可供瀝青路面養護人員直接採用的工藝方案。
  2. Under the complex loadings, the surface flaws of large complex structures and the original defects of materials would initiate the propagation of micro three - dimensional ( 3d ) cracks, and result in catastrophic accidents. for the limitations of the traditional theories of two - dimensional cracks, the safety of actual structures containing 3d cracks cannot be guaranteed completely without the out - of - plane stress constraint

    復雜應力作用下，宏觀復雜結構表面加工質量和材料本身固有缺陷以及外來損傷等會引起三維裂紋的萌生、擴展，最終導致災難性的破壞，而傳統二維裂紋理論在解決實際三維裂紋問題時出現不足，無法完全保障結構安全。
  3. Finally, an energy approach is combined with the fem in the simulation of the crack propagation along the fiber / matrix interface in a pull out process. the simulated results are in nice conformity with experimental results. the second part of the research deals with the characterization of the failure process in the fragmentation tests, which is one of the most frequently used test methods in studying thermal mechanical properties of fiber / matrix interfaces

    在這一部分工作的最後，採用能量法與有限元法結合起來，模擬纖維抽拔試驗中裂紋的擴展:針對以往研究工作中的不足之處，在模擬中使用能量釋放率，在表徵界面破壞時，所使用的應力強度因子考慮了纖維和基體兩種材料的不同屬性，並考慮裂紋尖端的單元奇異性，來研究裂紋長度和溫度對裂紋擴展的影響。
  4. With the material dynamic constitutive equation including damage and the effect of stain rate the predictable formula about ballistic limit velocity of fiber composite target. secondly based on the damage feature about ceramic / fiber composite target caused by impact load, analysis model about defense performance of ceramic / composite material target is formed and the predictable formula about ballistic limit velocity is also given. lastly using the reflection and projectile theory of stress wave the paper discusses the design of ceramic / composite material target, optimizes the design of double layer ceramic / composite targets, gains optimal coefficient under certain area density and discusses the variety relationship of area density and thickness with optimal coefficient u nder some ballistic limit velocity 3

    首先，分析了纖維類正交鋪層復合靶板在沖擊載荷作用下的損傷破壞機理，結合包含損傷和應變率效應的材料動態本構方程，建立了纖維復合材料板彈道極限速度的預測公式；其次，根據陶瓷/纖維材料復合靶板在沖擊載荷下的破壞特點，建立了陶瓷/復合材料靶板抗彈性能分析模型，給出了彈道極限速度預測公式；最後，利用應力波反射和透射理論討論了陶瓷/復合材料靶板的設計問題，對雙層陶瓷復合靶板的優化設計進行了分析，給出了在一定面密度下的最佳優化系數，討論了一定彈道極限速度下的面密度和厚度隨優化系數的變化關系。
  5. It was revealed that the hexagonal order was destroyed and the phase transition from hexagonal to amorphous structure with the increment of manganese ion, and with the appropriate neutral hexadecylamine ( hda ) with cetyltrimethylammonium bromide ( ctab ) as mixed template, mn - mcm - 41 was synthesized with well uniformly pore size and hexagonal mesostructure for the additional function of n - metal covalent bond, and the ordered structure was mediated by the influence on the packing parameter

    表明隨著mn ~ （ 2 + ）引入量的增加，導致介孔長程有序結構的破壞，最終引起由六方相向無定型相的轉變。適量中性表面活性劑十六胺的引入以形成混合模板劑，通過在原有靜電作用基礎上增加n -金屬鍵作用，合成結構較為完整的錳摻雜mcm - 41材料。
  6. By means of inquisition, the paper analyzes the causes of cement concrete pavement damage in earlier period, divides its damage into stages and analyzes the damage mechanism in theory, then puts forward relevant countermeasure for all stages. on base of these, by studying large quantity of experiments indoors combined testing road, the technique of pressing mortar under cement concrete plank and changing pavement plank, the material used to quickly repair pavement and system for draining off water are analyzed and researched in detail from principle to craft. at same tune, all kinds of repairing material and technique adaptable to cement concrete pavement are put forward

    本文通過對水泥混凝土路面破損的調查，分析了造成水泥混凝土路面早期破損的原因；劃分了水泥混凝土破壞階段，對不同階段的破壞機理進行了理論分析，並相應的提出了各階段的維修養護對策；在此基礎上，通過大量的室內試驗並結合試驗路的研究，重點對水泥混凝土板底壓漿技術、水泥混凝土路面的換板技術、水泥混凝土路面的快速修補材料以及對水泥混凝土路面的排水系統從技術、原理到材料工藝進行了詳細研究和理論分析，提出了適應各種水泥混凝土路面破壞的修補材料和修補技術；最後本文還對修築水泥混凝土路面提出了具有指導性的建議。
  7. Firstly, the people preferred the economic benefit of forest to the ecological benefit in the past old planned economy system. secondly, the resource of natural evergreen broad - leaved forest is destroyed and increasingly exhausted because of the population increment and the science and technology advancement. thirdly, we suffer from a gre at dread of the frequent natural - calamities and the continual deteriorated environment people began to be aware of the importance of the natural evergreen broad - leaved forest to human race and the protection for it

    在我國，生態保護小區的建立有其深刻的歷史背景： （ 1 ）舊的計劃經濟體制偏重於對森林木材採伐加工的利用，甚至盲目地追求森林採伐加工的經濟利潤，忽視了森林的最主要生態功能，造成大面積天然闊葉林遭受破壞； （ 2 ）人口增長引發毀林開荒，科技水平提高引起木業的飛速發展，這些導致天然闊葉林資源日益枯竭； （ 3 ）頻繁自然災害、不斷惡化的環境使人類蒙受巨大經濟、社會損失。
  8. Thirdly, to improve the application of light gauge steel structure in our country, some experimentations of institute of new - style steel structure which adopting native productions are induced nally, three - dimensional finite element model is presented. compared with the tests, mumerical results are verified much accurate and efficient, therefore a reliable way is provided to utilize the computational technique adequately to reduce the tests and to utilize the experimental results adequately to improve design quality, ( 3 ) study on floor system. not only adequate strength, stiffness and integer stabilization must be provided, but also insulation, fire and acoustics must be satified

    本文首先論述了lgsfcbw各種破壞模式及其原因，總結了各因素對lgsfcbw抗剪性能的影響，從而為我國引進和應用輕鋼龍骨結構體系奠定了基礎；其次從試驗模型、試驗方法和試驗結果三方面探討了國外lgsfcbw抗震性能的研究，並分析該體系的破壞模式和抗震特性、提出研究建議；然後介紹了為推動輕鋼龍骨住宅國產化，我們採用國產材料開展的系列試驗；最後提出了lgsfcbw的有限單元分析法，數值計算與試驗結果一致，為充分利用計算技術減少試驗數量和充分利用試驗成果提高設計水平提供了一條可靠途徑。
  9. The maximal power outputs of 37. 0 mw / cm2 and 30. 0 mw / cm2 for the p - and n - type laminated materials respectively at the temperature difference 490 have been experimentally obtained, which are about 2. 5 and 3. 0 times those of - fesi2. chemical analyses show that the interface failure between the bridge alloy and the semiconductor bi2te3 results mainly from the eutectic mixtures with low melting point and brittle compounds formed during welding and long time annealing at 190. it is found that the electrical properties of a laminated structure are mainly controlled by the wettability of the bridge alloy on the semiconductor surface

    發現： 1 ）疊層材料具有明顯優于均質材料的熱電性能，在490溫差下， p -型和n -型疊層材料的最大輸出功率分別達到37 . 0和30 . 0 （ mw / cm ~ 2 ） ，是同類型均質- fesi _ 2的2 . 5和3倍； 2 ）在焊接過程和190長時間退火處理過程中，焊接過渡層合金和基體半導體（特別是bi _ 2te _ 3 ）之間存在明顯的元素相互擴散，從而在過渡層中形成一些低熔點共晶體和脆性化合物，這是導致疊層材料破壞的主要原因； 3 ）焊接過渡層合金與半導體基體之間的潤濕性是影響界面層電性能的主要因素。
  10. This research is does using the glass fiber for the hillside makes up the strong strengthened material, mixes in the bolivian filament in the different hillside slope, the change hillside place intensity, improves regarding is easy to have the earth stone to flow local the hillside to give strengthens, with reduces the earth stone to cave in the after scope area, in has the after destruction regarding guard earth shi liu and the earth stone class to reduce to is smallest, after the process experiment data knew, mixes in bolivia truly to be allowed to strengthen the hillside place to the textile fiber the intensity, but mixes in the glass fiber to the too steep slope not to be big to its overall intensity help, after again comes is mixes in the glass fiber the hillside avalanche, proliferates the area comparatively originally not to mix in the glass fiber the area to be small

    摘要本篇研究是利用玻璃纖維做為山坡地補強的強化材，在不同的山坡坡度上混入玻璃纖維，改變山坡地的強度，改善對于易發生土石流地區的山坡地給予加強，和縮小土石坍塌后的?圍面積，在對于防?土石流和土石流發生后的破壞減到最小，經過實驗后的數據得知，混入玻璃纖維確實可以加強山坡地的強度，但對過于陡峭的坡度混入玻璃纖維對其整體強度幫助不大，混入玻璃纖維的山坡崩塌后，所擴散面積較原本沒有混入玻璃纖維的面積小。
  11. Competition ability depend on some factors, and production quality is one of the key competition ability. competition of production quality is not only competition of end products and process control, but also competition of material quality. material quality directly effect products quality, and can decide whether a enterprise can be successful

    企業的競爭力來自多方面，其中最核心之一為產品的質量，產品的質量競爭不再僅僅是成品質量、生產過程質量的競爭，競爭的重點已經向上游企業（即供方）原材料質量轉移，原材料質量的好壞越來越影響到一個企業的興衰。
  12. Finally, in response to the cavities beneath road slabs, 3d finite element analyses of pavment structures were conducted, the impacts on bearing capacity and life of pavements caused by cavities were analyzed, the reasons of early distresses were revealed ; also, in the aspects of pavement materials and structures, the measures and methods to prevent cavities were explored

    最後，針對混凝土路面板板底脫空現象，對路面結構建立三維有限元模型，通過大量的有限元計算，分析了板底脫空對路面板承載力及使用壽命的影響，揭示了路面發生早期損壞的根本原因，並從路面材料和結構設計方面探討了防止路面板脫空的措施和方法。
  13. This paper mainly introduces technologies of bending carbon fiber reinforced plastic ( cfrp ) plates or fabrics to the web of reinforced concrete members, and also this paper discusses the design principles of carbon fiber reinforced plastic ( cfrp ) used in the reinforced concrete members, as well as considering the preload effect to the bending capacity of the reinforced concrete members. finally, a kind of new practical method is put forward, and may be a reference for practical engineering designer. in the meantime, this paper analyzes the " local failure " caused by shear and normal stress concentrations at the plate ends that can easily incorporated into design equations. furthermore, the bonding and anchoring conformation of concrete members strengthened by carbon fiber reinforced plastics also be set forth

    本文重點研究碳纖維製成織物片材粘貼到混凝土表面用於結構的補強與加固的技術特點，從理論上探討cfrp加固混凝土結構的設計原理，分析二次受力對加固結構的彎矩承載力的影響；同時對外貼碳纖維加固混凝土的抗彎和抗剪提供一種簡單、實用的設計方法，供工程設計人員參考，對碳纖維布加固混凝土梁中出現剝離破壞也進行了分析，提供了最大剝離正應力的計算公式，以及對外貼cfrp加固結構構件的粘貼構造與錨固進行了闡述。
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