閉平面 的英文怎麼說

中文拼音 [bìpíngmiàn]
閉平面 英文
close plane
  • 閉 : Ⅰ動詞1. （關; 合） close; shut 2. （堵塞不通） block up; obstruct; stop up Ⅱ名詞（姓氏） a surname
  • 平 : Ⅰ形容詞1 （沒有高低凹凸 不頃斜） flat; level; even; smooth 2 （高度相同; 不相上下） on the same l...
  • 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. And it can be divided into four phases of urban tourism of china, in which there are different characteristics. ( 2 ) the evolutive rules of urban tourism of china are as follows : 1 ) the exoteric extent of tourism notion is more and more swell ; 2 ) the form of urban tourism renovate with the development of cities ; 3 ) the layout of urban tourism inner and outer is from close and complanate to exoteric and tridimensional ; 4 ) the sustaining system of urban tourism is from absent to as clear as a bell, and will reach a rational and advanced extent. 5 ) the social delamination of urban tourism is form stern to syncretic ; 6 ) the evolvement tendency of urban tourism should be generalized as a curve of accumbent " s ", which present a course makes up of low - grade development, high - speed development and balanced development

    主要觀點歸納如下： （ 1 ）城市旅遊是基於城市的發展而發展的，中國城市旅遊可分為古代、近代、現代和后現代四個階段，分別對應於前工業文明時期的城市旅遊、工業文明萌芽時期的城市旅遊、全面建設工業文明和后工業文明因素初露端倪時期的城市旅遊，以及邁向信息時代的城市旅遊，其間體現出不同的城市旅遊發展特徵； （ 2 ）經歷不同發展的時期，中國城市旅遊表現出如下的演進規律： 1 ）城市旅遊觀念開放程度逐漸增強，對城市旅遊的容納度日趨加大，對城市旅遊地位的認識從忽視到關注再成為生活的必要因素； 2 ）旅遊形式從單一走向多元，新的旅遊形式隨城市發展層出不窮； 3 ）城市旅遊的內外部空間聯系從封閉平面走向開放立體，達到網路化、連綿化、分區化、立體化布局； 4 ）城市旅遊支持系統從缺失走向健全，達到理性高端； 5 ）城市旅遊社會分層從森嚴走向融合，經歷了「小眾旅遊」 、 「大眾旅遊」 ，最終發展到「全民旅遊」 ； 6 ）城市旅遊產業演變態勢可以概括為一條橫臥的「 s 」曲線，表現為低開?高走?平穩發展。
  2. We put forward an algorithm for self - discrimination of island relation and an automatic intersected method of the region machining unit, which can judge the relationship among any plane obturate contour line effectively and swiftly. we also study the tool path generation technology of two - dimensional machining, basso - relievo machining, three - dimensional lifting - pen machining. meanwhile, we put forward an optimize approach of tool path, which improve the efficiency of engraving

    研究了圖像的刀具路徑生成技術與軌跡規劃問題，提出了基於射線的島嶼關系自動判斷和區域加工單元的自動分割方法，有效、快速地判斷了平面任意封閉輪廓線之間的關系，研究了平面任意區域填充加工、浮雕加工、三維提筆加工的刀具路徑生成的技術，提出了刀具路徑優化方法，提高了雕刻加工的質量和效率。
  3. Fluid noise mainly comes from out put pulsation of rate of flow, the main reason of out put pulsation of rate of flow is the instant high pressure return flow that obturation cubage produced when the big round curve pressure transition. the v trough on the port plate can reduce the fluid noise. in this paper, the author based on the acting of dam a river and condensability of liquid and used matlab language as tool to calculate the v trough on the original port plate and drew out the p - t diagrammatic curve and analyzed its shortcoming and improved the design of original v trough and got that the best size of its angle was 12. 3 and its length was 5mm and the cross section was an equilateral triangle

    流體噪聲主要來源於輸出流量脈動，造成輸出流量脈動的主要原因是閉死容積在大圓弧段壓力切換時產生的瞬時高壓迴流，在配流盤上開設v型尖槽可降低因高壓迴流而引起的流體噪聲，本文以截流作用和液體的可壓縮性為理論依據，以matlab語言為工具，對原配流盤上的v型尖槽進行了理論計算，繪制出p - t圖線，分析了它的不足，並對原有v型尖槽進行了優化設計，得出了v型尖槽的最佳幾何尺寸：配流盤平面上的v型尖槽的兩邊的夾角為12 . 3 ，槽長5mm ，槽的橫截面為等邊三角形。
  4. It is demonstrated by simulations that the control method is efficient and the fully cartesian coordinates is practically efficient. then the inverse kinematics of dual free flying space manipulator are mainly discussed in the third chapter, and the jacobean matrix for dual manipulator space robot is derived by fully cartesian coordinates, a control method for space manipulator based on the resolved motion rate control concept is proposed. then, the computer simulation verifies the effectiveness of the algorithm

    首先，分析了閉環雙臂空間機器人捕捉目標物體時的運動學關系，給出了以完全笛卡爾坐標表示的系統運動jacobi關系；然後，以此為基礎研究了空間機器人雙臂協調操作的分解運動速度控制方法和協調操作問題；最後應用matlab語言對平面雙臂空間機器人系統進行了計算機模擬、模擬，模擬運算證實了上述方法的有效性。
  5. Secondly, nonlinear threshold of two - dimensional rt instability was analyzed in planar and cylindrical and spherical geometries. density amplitude was defined relating to instable interface and formulae of nonlinear threshold values for rt instability in three geometries were given, then the lared - s code was used to simulate two - dimensional rt instability in three geometries and simulation results agreed well with the formulae

    其次，討論了二維平面、柱和球幾何中rt不穩定性發生非線性偏離的閾值問題，給出了三種幾何中密度擾動振幅的非線性閉值公式，並且用lared一s程序進行了檢驗，計算結果表明柱和球幾何中的模藕合機制與平面幾何不同，存在幾何效應的影響。
  6. 925 sterling silver short chain necklace with large faceted clear crystal ; toggle closure

    925英鎊銀色短鏈項鏈與大在上雕琢平面的清楚水晶;乒乓鍵關閉。
  7. In 1951, h. hopf proved, by associating a holomorphic 2 - differential to each constant mean curvature surfaces in r3, that only compact genus zero surfaces immersed in r3 with constant mean curvature are the round sphere, in chapter two, we consider the same question about the compact 2 - type surfaces of genus zero in s7

    1951年， h . hopf發現r ~ 3中每個常平均曲率曲面都伴隨一個全純微分2 -形式，並證明了零虧格的常平均曲率閉曲面一定是r3中的球面.本文的第二章對于獷中零虧格的2型曲面討論了類似的問題
  8. 4. with visco - elastic boundary of soil considered, the eigenvalue equation in frequency domain of soil dynamic equilibrium equation falls into a complex transcendental equation. in course of seeking its solution, based on argument principle and contour integral, with the aid of matlab, two numerical algorithm combined with the corresponding procedures for solving transcendental equations in a complex plane is developed by the author

    4 、由於考慮了土體的粘彈性支承邊界條件，使得其動力平衡方程在頻域內的固有值方程為一復數超越方程，為了求解該方程，筆者基於幅角原理和閉合曲線積分，結合matlab ，提出了復平面上超越方程的兩種數值解法，並編制了相應的程序。
  9. Then with implicit function theorem the flexible workspace is dealt with. by using the jacobian matrix of the hybrid input mechanism, the sensitivity of output is obtained. then the condition number of jacobian matrix is derived

    進而研究平面閉鏈機構的柔性工作空間，並利用隱函數定理快速地推導出平面閉鏈5r和4rp機構的工作空間的邊界條件。
  10. 925 sterling silver link bracelet with 3 faceted clear crystals ; toggle closure

    925英鎊銀色鏈接鐲子與3在清楚水晶上雕琢平面;乒乓鍵關閉。
  11. At the initial stage of planar technique, b was employed as ideal diffusion impurity in base - region of npn si planar devices because of the match of its solid - solubility and diffusion coefficient in si with those of p in emission - region, and the good shield effect of sio2 film to b. but because of the relatively large solubility ( 5 1020 / cm3 at 1000 ) and the small diffusion coefficient, the linear slowly - changed distribution of acceptor b in pn junction can not be formed, which could not cater to the requirement of high - reversal - voltage devics. thereafter b - a1 paste - layer diffusion technology and close - tube ga - diffusion technology had been developed, while the former can lead to relatively large the base - region deviation and abruptly varied region in si, which caused severe decentralization of current amplification parameter, bad thermal stability and high tr ; the latter needed the relatively difficult pack technique, with poor repeatability, high rejection ratio, and poor diffusion quality and productio n efficiency

    在平面工藝初期，由於b在硅中的固溶度、擴散系數與n型發射區的磷相匹配， sio _ 2對其又有良好的掩蔽作用，早被選為npn硅平面器件的理想基區擴散源，但b在硅中的固溶度大（ 1000時達到5 10 ~ （ 20 ） ，擴散系數小， b在硅中的雜質分佈不易形成pn結中雜質的線性緩變分佈，導致器件不能滿足高反壓的要求，隨之又出現了硼鋁塗層擴散工藝和閉管擴鎵工藝，前者會引起較大的基區偏差，雜質在硅內存在突變區域，導致放大系數分散嚴重，下降時間t _ f值較高，熱穩定性差；後者需要難度較大的真空封管技術，工藝重復性差，報廢率高，在擴散質量、生產效率諸方面均不能令人滿意。
  12. In the case of closed surface, we obtain the following result : theorem 3. 1 let m be a closed surface with parallel mean curvature direction in r4 ( ), which admitting an isometric deformation preserving mean curvature

    在閉的情況下，我們得到如下結果:定理3 . 1設m是r4 （約中平均曲率方向平行、非臍的閉曲面.若m容有保持平均曲率方向平行、且保平均曲率的等距變形曲面應，則m有常平均曲率
  13. After analyzing the characteristic of petroleum distribution in the linnan subsag, the author concludes four viewpoints, such as odds of petroleum on plane, odds of petroleum in different layers, odds of petroleum in different traps, and odds of petroleum which is controlled by structure

    摘要對臨南窪陷油氣分佈特徵進行了分析研究，認為該地區油氣分佈具有以下4個特徵：平面上分佈不均；不同層位分佈不均；不同圈閉類型分佈不均；油氣分佈受構造因素控制。
  14. Type synthesis and topological description of spatial parallel mechanisms based on five - bar closed - loop structure

    基於平面五桿閉環結構的空間並聯機構類型綜合與拓撲分析
  15. Generally, a planar triangulation method is used to enclose the unmatched contours

    通常，對末端輪廓都是以平面三角剖分封閉端面。
  16. Indirect ray method contains the following steps : the receiving plane wave field intensities on an adapted closed surface encloseing the antenna is calculated and then the radiation field of the antenna on the same closed surface is obtained from the given antenna. after using lorentz reciprocal theorem, the far field patterns with and without radome are gotten

    間接射線法的分析步驟為:從參考面出發的入射平面波（經天線罩）在閉合面sa （在天線罩內且包圍天線）上的接收場為et 、 ht ，天線在sa上的發射場為ea 、 ha ，由洛侖茲互易定理可求出天線的遠區場。
  17. The off - line program system based on cad / cam for dispensing robot is designed on the computer. in the module of trajectory planning, preliminary discussion is done about the shortest loop path and an algorithm of solving this problem is provided ; in the module of back procedure, dda ( digital differential analyzer ) is adopted in line, circle and ellipse interpolation. at last the protocol transferring program data to robot from off - line system is analyzed

    在離線編程的系統的設計中，實現了cad的建模、點膠軌跡的程序示教、工藝參數編輯、軌跡規劃、後置處理等功能，並在規劃模塊中針對平面內不規則排列點進行點膠的軌跡規劃進行了初步探討，採用圖論的方法，給出滿足實際要求且演算法復雜度較小的最短閉合迴路的程序演算法;在離線編程系統的後置處理模塊中，介紹了直線、圓弧、橢圓弧的dda插補方法以及脈沖分配不均勻的改進方法;最後對通信協議的制定進行了分析。
  18. For applications requiring handle removal, the d - ring stem flats indicate “ open / close ” and a molded - in arrow on top of the stem indicates flow direction

    由於實際應用中可能需要拆卸手柄，因此d形環閥桿平面表示「啟閉」 ，閥桿頂部的的模鑄箭頭表示流向。
  19. However, physicists inclined to believe that the total mass of the universe will be " just right ", that means it is enough to stop the expansion of the universe at last but is not enough to pull it back. hence, the universe is neither closed nor open but a flat universe

    不過，很多物理學家傾向相信宇宙中的物質質量不太多也不太少，膨脹會逐漸緩慢下來，但永遠不會收縮，宇宙既非封閉也非開放，而是介乎兩者之間的平面宇宙。
  20. First according to the fact that tangential components of the evolution do not affect the geometric shape of the evolving curves, we introduce the evolution equation of geometric quantities for the general planar curves. then we describe the work of gage - hamilton briefly. last we consider a special curvature flow of curve which evolves with speed function of the principal curvatures along the inner norm and show that convexity of the curve is kept and its length and area are contracted if the initial closed curve is smooth and convex. so the final shape of the curve will be a point in finite time

    首先根據曲線在切向分量上發展是不影響曲線的發展形狀，我們引入了曲線的一些幾何變量的發展方程；其次我們簡要地回顧gage - hamilton研究曲線發展的一般步驟；最後我們考慮沿曲線的內法線以曲率的函數為發展速度的一類特殊的曲線族，證明了在初始曲線為凸的閉平面簡單曲線條件下，曲線將保持凸的，並且它的面積和周長將同時收縮，並在有限時間內成為一個點。
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