叉形結構 的英文怎麼說
中文拼音 [chāxíngjiēgòu]
叉形結構
英文
fork configuration-
The feathers attached to the arms and the tail evidently possess the structures of " modern feathers ", which consisting of the central shafts ( rachis ) and parallel barbs. dromaeosaurids are unusual group of maniraptoran theropods. they share many similar or the same features with archaeopteryx or other primitive birds, such as : u - shaped furcula, uncinate process, laterally facing glenoid of shoulder girdle, comparatively long forelimb, large semilunate carple, retroverted pubis, ascending process of astragalus, and " modern feathers " with rachis and barbs etc. these facts indicate not only that dromaeosaurids had developed many bird - like characters in course of the advanced maniraptorans toward birds, but also that there seemed to be the co - evolutionary trend between the feathers and the skeletal bones
奔龍類是一類較為特殊的手盜龍類（ maniraptora ） ，它具有許多與始祖鳥archaeopteryx甚至其它早期鳥類相似或接近的特徵，主要表現在：叉骨u形與始祖鳥和孔子鳥類的相同，背肋鉤狀突在孔子鳥類和個別反鳥類中也存在，肩臼窩絕大部分指向側方類似於始祖鳥，肩胛骨與烏喙骨間的夾角非常接近90也和始祖鳥的相似，前肢從比例上講顯得較長，大的半月形腕骨使肘部能向側方折過來，恥骨伸向後下方，距骨上升突與原始鳥類中的為同源結構，羽毛已有顯著的分化且具備了現代羽毛的基本結構等等。2. professional drawing database the cpcad develops a city planning professional drawing database on multi - fork tree structure through which can easily manage and use the standard drawing block in common use. 3
專業圖形庫管理本系統開發了一個基於多叉樹結構的城市規劃設計專業圖形庫，來管理與使用城市規劃設計中用到的標準、規范的圖塊。Being lacking of understanding of behaviors of circular working shaft, the paper proposed theory about ring - beam ' s load - distribution calculations and analyzed the structural behavior of circular working shaft ( cws ) by the numbers from the standpoint of properties of structural style and stress incorporated with thoughts of shared load introduced to research of cws. first, regarding cws as structure of series of hypothetic horizontal circular rings and vertical beams, and considering cws ' s formation and development, the paper proposed load - distribution thoughts to solve cws ' s calculations. ring - beam calculation theory was put up and software cbtlmp1. 0 was worked out based on the conditions of external applied load shared by rings and beams, and of deformation conformity
首先，本文提出用分載思想解決圓形工作井結構的計算分析問題，將圓形工作井結構看成是由一系列的假想的水平圓環和豎直梁組成的結構，考慮工作井形成過程及形成階段與項進階段的連續性，根據某一時刻相對于上一時刻外載增量由環與梁分擔、環與梁在交叉處變位增量一致的條件將環計算理論與梁計算理論結合起來，據此建立了環?梁分載計算理論並研製了環?梁分載計算分析軟體cbtlmpv1 . 0 。According to the present mpe situation and the current servicemen " s knowledge structure and level, the kc has now been most directly demonstrated by building up a reasonable and expansive knowledge platform quadruple - bordered by nature science, social science, intellection science and especially the frontier science out of the intercross between the beyond sciences, then being exploited its resources to ensure the realization of the mpe ' s eventual goal
針時當前軍隊思想政治教育形勢的要求和官兵現有知識結構水平，知識育人功能的最直接的體現是從自然科學知識、社會科學知識、思維科學知識和一些軍事學科與其他學科交叉產生的邊緣學科知識這四個方面為受教育者裕建一個合理而寬廣的知識平臺，力求藉助這一知識平臺的底蘊來保證軍隊思想政治教育育人目標的有效實現。The techniques related terrain lod is systematically studied based on the quadtree data structure. combining the data block attemperation idea, we solved the data integrating and preculling problem, presented the boundary constraining solution, and calculated the collision detection for rambling
本文在四叉樹結構的基礎上較為系統的研究了地形相關lod技術，結合數據分塊調度思想，解決了數據連接和預裁剪問題，給出了邊界約束問題的解法，並針對漫遊計算了特定的碰撞檢測。This thesis gives a brief account of the basic theories of software engineering and computer graphics, of the data structure of individual component modeling, of the design of the software structure and of the method of realizing software. meanwhile, this thesis put more emphasis on the exploration of the arithmetic of the delaunay triangle network, nurbs curve integration, the filling - in arithmetic of triple - tree, and the arithmetic based on the scan - line arithmetic and the filling - in of complex section
文章介紹了關于軟體工程學與計算機圖形學的基本理論及其各組件模型的數據結構、軟體結構設計與軟體實現的技術方法，並重點討論了基於約束條件的delaunay三角網格化演算法、 nurbs （非均勻有理b樣條）曲面擬合、三叉樹等值線填充演算法和基於掃描線的復雜剖面填充演算法。12 orrite c, blecua s, herrero j e. shape matching of partially occluded curves invariant under projective transformation. computer vision and image understanding, 2004, 93 : 34 - 64
此外，匹配的特徵相似性度量結合了非均勻有理b樣條的畸變估計和局部的圖形窗口交叉相關性，從而融合了幾何結構和圖像灰度的相似性。The wavelet multi - analysis is adopted to further understand the microstructure of solids holdup fluctuation, the vivid fingermark images show that it is a fractal and dissipative structure. the low and frequency signals reflect the dilute phase fluctuation behavior and dense phase ( cluster ) fluctuation behavior, respectively. to deep understand the multi - scales characteristic of gas - solids circulating fluidization, the wp decompose methods for obtaining the eigenvalue of gas - solid fluidized bed has been developed. the results show that eigenvalues of different scales are effective for identification of non - uniform and dynamic structure of gas - solid fluidized bed
小波多分辨分析法得到指紋圖形象地揭示了顆粒濃度脈動的自相似、分叉等具有混沌特徵的微觀結構；小波分解后信號中的低頻和高頻成分分別代表了稀相和密相的脈動行為，小波包分解提取能量特徵值的方法能夠揭示氣固的多尺度特性，不同尺度上的能量特徵值四川大學碩十論文反映了氣固循環流化系統中存在的非均勻動態時空結構。The blade inner channel cooling is a complex convection - conduction coupling problem. this thesis build a three - dimension. compressible turbulence model, and give a general solve method. with the geometrical model of the glossily rectangle straight channel, the rectangle straight channel with in - line arrays disturb plates, the rectangle straight channel with staggered arrays disturb plates, the rectangle straight channel with slant disturb plates, this thesis compute the flow and heat transfer condition when the cold air path though these channels, and gain the temperature field, pressure field, velocity filed, in addition. this thesis also analyze the influence of the different channel height, the different channel materials, the different channels, and gain the function relation between he nusselt number, friction factor and reynolds number. this thesis is emphasis on the new heat transfer enhancement structure, that is, disturb plates, with the comparison with the glossily channel and channel with pin fins, the heat transfer enhancement effect of the former is better, and the conclusion can be used in the design of aircraft blade
葉片內部通道冷卻是一個復雜的對流?導熱耦合傳熱問題，本文在分析葉片內部通道冷卻的流動與傳熱情況的基礎上，建立了三維、可壓縮紊流的物理模型，得到了通用的求解辦法；利用不帶擾流片的矩形直通道、帶順排擾流片矩形直通道、帶叉排擾流片、帶傾斜擾流片的矩形直通道的幾何模型，計算了冷卻空氣通過這幾種通道時的流動與換熱情況，得到了各種不同情況下計算區域的溫度場、壓力場、速度場；在此基礎上分析了不同的通道高度、不同的葉片通道材質對葉片內部通道冷卻的影響，並整理得到了各種通道形式下，努謝爾數和阻力因子與雷諾數的函數關系；本文重點研究了新型的葉片內部通道冷卻強化傳熱措施?帶擾流片的內部冷卻通道的強化傳熱效果，通過與光滑矩形直通道、帶針肋通道的冷卻效果的比較，表明了這種新型鮚構的優勢，對于葉片內部通道冷卻結構的設計可以起到指導的作用。Considering the stiffened plate as a composite system of grillage beams and slab, the superstructure as an equivalent rigidity plate, a semi - analytical and semi - numerical method, which makes use of compatible analysis of force and displacement among beams and slabs and columns and ground, is developed to analyze interaction between stiffened raft foundation and subsoil considering the rigidity of superstructure
摘要將彈性地基上的梁板式矩形筏基視為十字交叉梁與平板組合體系，上部結構剛度簡化為等效剛度板，採用半數值、半解析方法，通過梁、板、柱以及地基之間力與位移平衡協調分析，可得到考慮上部結構剛度時梁板式筏基寫地基共同作用的半數值、平解析解。To utilize property of saws propagating, it can be made including delay lines, passband filters, oscillators and pitch filters. surface transverse wave ( stw ) was used the configurature of reflective metal - strip grating between the two interdigital transducers, and made the shear horizotal ( sh ) wave on the surface of the piezoelectric substrate, but not to deep in
聲表面橫波（ surfacetransversewave ，簡稱stw ）是採用在兩個金屬叉指換能器之間加入短路柵的隔離板結構使剪切水平波（ shearhorizontalwave ，簡稱sh波）被嵌制在壓電基片表面上，而不是沿壓電基片內傳播的聲表面橫波形式。The famous algorithms include roam, vdpm, adaptive triangulation based quadtree and the improved algorithms of them, etc. however, the improvement of the present algorithms mainly focus on the selection of data structure which can speed up generation of the tmrm, few works were put into ameliorating the simplification criterion, hi fact, the simplification criterions used by the algorithms at present are constructed with only two elements which are the distance the vertex from the viewpoint and the roughness of terrain expressed by z coordinate
地形多解析度模型的生成演算法種類較多，著名的有：自適應優化格網演算法（ roam ） 、基於視點的累進格網法（ vdpm ） ，基於四叉樹的自適應剖分演算法以及基於各演算法的各種改進演算法等等。但目前人們對演算法的更新及改進主要是從數據結構的角度來考慮，對簡化準則沒有做實質性的改進。Lastly, by philosophical analyzing the article draws conclusion : going on with efficient institutional change asks for dynamical grasping of path characteristic. so at present in order to advance the change the cumulative cost of institutional gradual change must be apportioned reasonably ; adjusting the change strategy wholly makes unitary institutional innovation accompanying configurable innovation ; switching institutional change mode neatly makes sure that the following change is efficient ; government ' s playing the leader role of institutional change makes adverse path dependency be got over and thoroughly resolves the shortage problem of effective institution
最後，運用通觀全局、抓主要矛盾與矛盾的主要方面的哲學方法進行總結性分析，得出「繼續實現富有成效的制度變遷需動態把握路徑特徵」的結論，那麼，現階段應該對漸進式制度變遷的累積成本進行合理分攤，確保進一步變遷順利推進；從總體上調整制度變遷策略，形成由單項制度創新所引領的制度結構創新安排；針對變遷過程適時靈活轉換變遷方式，使變遷方式交叉復合、優勢互補，確保進一步制度變遷的效率；強化政府的變遷主體地位，以克服不利的路徑依賴，從根本上解決阻礙進一步變遷的有效制度缺失問題。Is develops in the even tray foundation, uses in the parts or disperses the shape material the collection attire ; the general lower part sound of something splitting or cracking attire, upside may the hoisting, and may carry on piles buttress ( is generally four ) ; has the stationary type, the demountable type or the foldaway three kind of structures and the typeface, the form, the net type three kind of forms
鋼制料箱：是在平托盤基礎上發展起來的，多用於散件或散狀物料的集裝；一般下部可叉裝，上部可吊裝，並可進行碼垛（一般為四層） ；有固定式、可拆式或折疊式三種結構和板式、格式、網式三種形式。At the same time, the steel truss with cross diagonal web members, without vertical web member, is the best project to transfer a big span structure
同時，研究發現有交叉斜腹桿而無豎腹桿的鋼桁架結構形式是實現大跨度、大柱網轉換的優選方案。Chapter two covers the problem of connotation of the knowledge structure for chinese teachers and the problem of how to improve the k nowledge structure. it is stated that teachers of chinese should have all - round cultural quality, with three - dimensioned developing structure of knowledge
第二章論述了語文教師的知識結構的內涵，以及如何優化知識結構的問題，指出新的時代要求語文教師具有全面的知識文化素質，形成動態的、立體交叉的知識結構。The core contents of digital power transmission network are to build the true three dimension scene of objective region, to search for the transmission equipments and to operate them in the scene interactively. according to the two main kinds of three dimension digital models ( earth surface model and transmission equipment model ), this thesis describes a simplifying method depended on view - point : it accomplishes displaying and flying over a large area of true earth surface with level of detail model based on block - binary tree. and it realizes " the efficient display of abundant data of equipment models and interactive management by the method of combination of models and images
構建目標區域的真實三維場景，並在場景中對輸電設備進行查詢和交互操作是數字輸電網路的核心內容，本文針對數字平臺中兩種主要的三維數據模型? ?地表模型及輸電設備模型提出了基於視點的簡化方法：用塊? ?二叉樹結構的動態細節層次模型解決了大區域真實地形的顯示及漫遊方法；用失柵結合的方式實現了對海量設備模型數據的高效顯示及交互管理的功能。Now the method of lever set is wildly used like crystal grows, etc. this paper mainly explains the application in the moving interface aspect of the method, which based on fast tree redistancing for moving interface, including definition of level set method, adaptive mesh ( octatree ) and interpolation of scattering points
水平集方法現已得到廣泛的應用，如晶體增長等。本論文主要闡述了水平集方法在求等距問題方面的應用，即一種基於樹形結構的快速等距面計算方法，包括水平集方法的定義，自適應網格剖分（本論文採用八叉樹的方法）以及離散點的插值。In this paper, the working fluid is air. experimental study of the nine different structure parameters of 3 - d ift with staggered arrangement fins in the reynolds number range of 250 to 30000 is performed to investigate the characteristics of heat transfer and flow friction behavior. analyses and reduces the experimental data by the least square method, obtains the nusselt and fanning friction fitting criterion equations
本文以空氣為工質，在re 250 30000范圍內對九根具有不同肋形結構尺寸的肋叉排三維內肋管的換熱及流動特性進行了研究，並運用最小二乘法分析和處理實驗數據，獲得努謝爾特數，范寧摩擦系數與雷諾數，肋幾何參數的準則方程式。Analysised the cross - experimental results and found the fittest way of various constructs to get the highest value of the thermal performance factor. gave the theorith analysis of the mechanism of enhancement of heat transfer. and point out the optimize way of the fin
得到了肋叉排列三維內肋管在以上三個流態區間內，達到熱力性能系數最佳時的結構組合方式，並對強化傳熱的機理進行了理論分析。同時，指出了肋形結構進一步優化的方向。分享友人