矩形件 的英文怎麼說

中文拼音 [xíngjiàn]
矩形件 英文
rectangular piece
  • : 名詞1. (畫直角或正方形、矩形用的曲尺) carpenter's square; square2. (法度; 規則) rules; regulations 3. [物理學] moment
  • : Ⅰ量詞(用於個體事物) piece; article; item Ⅱ名詞1. (指可以一一計算的事物) 2. (文件) letter; correspondence; paper; document
  1. Based on these theories, this paper discusses the method of design of the rectangular gunn integrated active microstrip patch antenna in detail. the size of the active antenna and the location of the device in the antenna is obtained at the specified operation frequency

    根據這些理論,詳細討論了一種集成gunn二極體的有源微帶貼片天線的設計,得到了在給定的工作頻率下的有源天線尺寸和有源器的位置。
  2. The best optimum mathematical model is constituted. scalar factor of structural parameter on loop rectangular negative pressure and adsorption slide is calculated. structural parameter, air gas source pressure carrying capacity and thickness of air cell are made sure by hydrodynamics and the theory of gas lubrication

    詳細論述了導軌副的設計過程,運用數學上的拉格朗日條極值求解法,建立最優化數學模型,求出環負壓吸附導軌的結構參數的比例情況,並運用流體力學和氣體潤滑理論確定了環負壓吸附導軌的結構參數、氣源氣壓、承載能力和氣膜厚度的確定性結論。
  3. Direct calculation of symmetric reinforcement for rectangular cross sectional little eccentric compression member

    截面小偏心受壓構對稱配筋的直接計算
  4. Components of injection mould for plastics. flat ejector pins

    塑料注射模零.頂桿
  5. The capacity of normal section for high - strength concrete members

    鋼筋混凝土空心截面偏心受壓構正截面承載力計算
  6. A design method of symmetrical reinforcement members subjected to small eccentric compression by secant method

    截面對稱配筋偏壓柱由軸壓承載力控制配筋時的鑒別條
  7. 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。
  8. Broaching tools ; rectangular end pieces s for internal splines

    拉刀.第6部分:s
  9. Broaching tools ; rectangular end pieces p not for internal splines

    拉刀.第4部分:p
  10. A new waveguide made of changing a wide wall of a rectangular waveguide to a uniform curved wall is called conformal waveguide. a kind of expression of approximate solution for domain mode of the new waveguide, including symmetric, unsymmetric arc, parabolic arch, hyperbolic arch, elliptic arch, etc., is constructed by using boundary condition of mental waveguide, variational method and boundary element method. by using the equivalence principle, an approximate calculating formula for equivalent resonant conductance of a narrow longitudinal halfwavelength slot cut in the curved wall of the unsymmetric arcrectangular waveguide is derived, and the result is shown. although this solution is approximate, it can solve the problem in designing the slotted antenna of such conformal waveguide

    波導一個寬面外突成均勻曲面構成的新波導統稱為共波導.利用金屬波導邊界條、變分法、邊界元素法構造這種新波導中主模場的一種近似解表達式,包括曲面橫截線為對稱、非對稱圓弧,拋物線弧,雙曲線弧,橢圓弧等.然後根據等效原理,推導非對稱圓弧波導曲面上窄的縱向半波長縫隙的等效諧振電導的近似計算公式,給出計算曲線.這種解雖然是近似的,但卻能解決這類共波導縫隙天線的工程設計
  11. Mutual optimization of the rectangle layout in the nesting system

    矩形件優化排樣系統中的交互尋優處理
  12. Discrete particle swarm algorithm for the rectangular strip packing problem

    離散粒子群優化演算法求解矩形件排樣問題
  13. So the problem is easier to solve by transforming irregular shapes layout problem into rectangles layout problem, and it still has nice efficiency

    因此,將異轉化為矩形件后處理布局能簡化問題,並保證良好布局效果。
  14. At present the method of dealing with it directly is hard to design and the relevant computation is enormous, there are some mature algorithms to solve rectangles layout problem

    目前,直接處理異布局問題的演算法設計難度和計算量較大,而矩形件布局已有一些成熟演算法。
  15. Numerical examples shows the efficiency of the lhl method. two meta - heuristic hybrid algorithms are given that integrated lhl method with genetic algorithm and simulating annealing algorithm separately

    將該方法分別與遺傳演算法、模擬退火演算法相結合,提出了矩形件排樣問題的復合演算法。
  16. A approximate algorithm is presented by which satisfactory results of two dimensional optimal layout belonged to np complete problems can be obtained efficiently and rapidly

    摘要針對理論上屬于np完全問題的二維矩形件優化排樣問題,構建了一個排樣效率高、計算速度快和排樣效果好的一種近似演算法。
  17. Because the number of rectangle can only be estimated in advance, so probably there is some rectangle exceeding the boundary because of allotting too much rectangle or too fewer rectangles is allotted results in the waste of material

    由於自動排樣系統事先只能初步估計待排矩形件的數目,所以自動排樣系統產生的排樣圖可能會因排入的零太多而使得個別零超出板材,或因排入的零太少而使板材無法排滿。
  18. During the development, problems of actual layout have been considered, both the method using the experiential value of fitness function to identify the number of the initial rectangle parts and the method of magnifying rectangle parts to eliminate the influence of cutting gap have been advanced

    在開發過程中,全面考慮了實際排樣所面臨的種種問題,提出了用適應度函數經驗值來估計初始可排矩形件數目的方法;用矩形件放大的方法來消除切縫對排樣圖的影響。
  19. This paper points out that it is efficient to code the string of index of the parts in adopting ga to solve cutting stock problem after analyzing the features and research tendency of ga. this paper presents suitable operators of selection, crossover and mutation for the coding method. these operators are used in the calculation of one - dimensional and rectangular cutting stock problems

    本文為這種基因編碼設計了實用的選擇、交叉、變異遺傳運算元,並將其用於一維下料方案優化問題、矩形件排樣問題的求解;討論了不同工藝要求條下的適應度定義方法,並用四川大學博士學位論文計算實例驗證了其尋優效果。
  20. The paper dealt with the optimal design problem of stock layout patterns of saw cutting blanking for rectangular pieces of a single size, proposed a kind of optimal layout method of rectangular pieces of a single size, pointed out the mathematical basis, selective conditions of the optimal solution and layout disposal of the particular solution

    摘要討論單一尺寸矩形件鋸切下料排樣方式的最優設計問題,提出一種單一尺寸矩形件優化排樣方法,給出這一排樣方法的數學依據、優化解的選擇條和特殊解的排樣處理。
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