閉合曲線 的英文怎麼說

中文拼音 [xiàn]
閉合曲線 英文
closed curve
  • : 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
  • : 合量詞(容量單位) ge, a unit of dry measure for grain (=1 decilitre)
  • : 曲名詞1 (一種韻文形式) qu a type of verse for singing which emerged in the southern song and ji...
  • : 名詞1 (用絲、棉、金屬等製成的細長的東西) thread; string; wire 2 [數學] (一個點任意移動所構成的...
  • 閉合 : close; shutting; synizesis; synezesis; occlusio; closure; make; occlus-; occluso-
  • 曲線 : [數學] curve; bight; bought; profile; net曲線板 french curve; irregular curve; curve board; splin...
  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,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 」,表現為低開?高走?平穩發展。
  2. By hydraulic modeling, this paper describes studies on the stability of a floating bulkhead operating in standing water and flowing water, and it ' s hydrodynamic stability characteristics that distinguish in standing water from in flowing water ; and direct measurements of the forces acting on the model floating body during floating and sinking is taken. as a result, the rotation stress curves are produced and analyzed ; to provide data for optimum operation schedule analyses of the sluice, the relationship of the impact forces acting on the side wall of the gate and the running speed is studied ; the reasons of unstably uplifting of the bulkhead are discussed and the method to solve the problem is also given in this paper

    本文結常州新閘防洪控制工程水工模型試驗,系統分析了浮箱門在靜水和動水中的穩定性及其影響因素,指出靜水穩性和動水穩性的不同特點;試驗測定了浮箱門動水運行時的受力情況,給出並分析了定位過程轉動力的變化過程;根據浮箱門啟速度與門體和岸墻之間撞擊力大小的關系,選擇理的動力設備,為設計和工程實踐提供可靠依據;分析浮箱門難以穩定上浮的原因,並給出解決方案。
  3. Comparing with the neutral cave on the smooth plane that was thumb - like and opened at the bottom, the neutral caves on the plane with single roughness elements were closed circles. with the growing of roughness element s height, the closed circle became smaller

    實驗中發現與光滑平板邊界層的下端開放式的拇指型中性相比較,有粗糙元平板的中性為封式的環形,隨著粗糙元高度的進一步增加中性收縮為更小的環。
  4. In this paper, thermal evolution history of organic matter of the source rocks and hydrocarbon generation history have been researched by tti method, hydrocarbon migration direction and migration times were probed combining with the area structure development feature ; distribution pattern of the main reservoir intervals on lateral and longitudinal have been predicted by researching on development feature and control factors of the reservoir intervals, the actions of reservoir conditions in hydrocarbon accumulation and bearing also were probed combining with pore evolution feature ; the micro - pore feature of regional cap and direct seal in carboniferous - lower triassic in this area have been determined with micro - capillary pressure curve and intrusive mercury curve ; the prospecting districts have been pointed out combining with the hydro - geologic feature, the potential reservoirs were classified according to trap types in this area, the author attempt to evaluate on the hydrocarbon - bearing condition in the str ata of carboniferous ~ lower triassic from hydrocarbon generation and migration reservoir condition, reserved condition etc, and predict the reservoir types and hydrocarbon - bearing patterns combining with the structure evolution. based on above, the author point out that the central block of chenghu - tuditang synclinorium and the southern block of dangyang synclinorium are the advantageous regions for exploration

    本文用tti方法研究了烴源巖有機質的熱演化史和油氣生成史,並結區內構造發育特徵,探討油氣在區域上的運移方向和在時間上的運移期次;通過對儲集層段的發育特徵和控制因素的研究,預測了本區主要的儲集層段在橫向上和縱向上的分佈規律,並結孔隙演化特徵,探討儲集條件在油氣聚集成藏中的作用;利用微毛細管壓力法和壓汞法,對石炭系?下三疊統的區域蓋層和直接蓋層的微孔隙特徵進行了定量評價,並結水文地質分佈特徵,指出有利於油氣保存的地區;根據區內存在的各種圈類型,對可能存在的油氣藏進行了分類,並試圖從油氣的生成與運移、儲集條件、保存條件等方面,動態地綜評價石炭系?下三疊統油氣成藏條件,並結構造演化特徵,預測其油氣藏類型和成藏模式。
  5. 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。
  6. Through calculation of a living example and its result analysis verified that while the vibration amplitude is comparatively small and the sine curve is being adopted, the theoretical contour of cam possesses rather good form closure property and is suitable to be applied for high - speed cam

    通過實例計算和結果分析,表明該凸輪理論廓採用正弦,在振幅較小時,有較好的形封性,適用於高速凸輪。
  7. Besides, pid control algorithm is introduced and the velocity closed - loop controller is designed on the basis of dynamic model for the train. furthermore, according to kunming world ' s fair route data, the ato system with pid controller is simulated. it shows some disadvantages, and so the predictive control algorithm is brought forward to realize velocity closed - loop control

    在已有的列車運動模型基礎上,採用pid控制演算法,設計了列車的速度環控制器,結昆明路數據,進行了基於pid控制器的ato系統模擬分析,發現採用pid控制器控制時,列車運行呈波浪形,當遇到坡道或者外界干擾時速度和加速度會出現尖峰現象。
  8. Abstract : the paper analyzed the properties of concentric curve, theprinciple and method of setting out stakes of middle - line & sidings on one random station and closed with main points

    文摘:分析了同心的性質,提出了可在任意點設站測設同心的原理及放樣同心的中、側各樁並於各自主點的方法
  9. And about the symbols, after analyzed the structural properties of alphabetic and digital characters on vehicle license plate in detail, the dissertation selects features of minutiae, closed curve and corners in strokes as the foundation of character recognition to recognize characters in license plate

    而對于符號,通過對車輛牌照上英文字元和數字字元結構特徵的詳細分析,選擇字元中的細節點特徵、閉合曲線特徵和拐角點特徵作為字元識別的依據,根據這些特徵來識別牌照上的英文字母和數字字元。
  10. It is composed of magnetic pulse sensor and control components, and is a built - in part inside distributor. it detects engine cranking position signal and cylinder signal via sensor, followed by treatment by control unit, thus controlling the on off of the current of control ignition coil to achieve the purpose of ignition. it has a function of auto closing regulation

    該型產品是為微車無觸點點火系統而研發的,它由磁脈沖傳感器和控制組件構成,內置於分電器內,通過傳感器檢測發動機軸位置信號汽缸信號,然後經控制組件處理,控制點火圈中電流的通斷,從而達到點火目的,具有角自動調整等功能。
  11. It is composed of magnetic pulse sensor and control components, and is a built - in part inside distributor. it detects engine cranking position signal and cylinder signal via sensor, followed by treatment by control unit, thus controlling the onoff of the current of control ignition coil to achieve the purpose of ignition. it has a function of auto closing regulation

    該型產品是為微車無觸點點火系統而研發的,它由磁脈沖傳感器和控制組件構成,內置於分電器內,通過傳感器檢測發動機軸位置信號、汽缸信號,然後經控制組件處理,控制點火圈中電流的通斷,從而達到點火目的,具有角自動調整等功能。
  12. For cutting the composite lock gear with unequal tooth thickness, a study is made on the design method of gear sharper cutter with nonstandard parameter involute tooth profile and noninvolute tooth profile. the cutter tooth arrangement, the choice of teeth number of the cutter and the basic method of cutter design are discussed ; and a new method of choosing deflection factor by using limited area is presented. and the curve of relationship between rear angle on tooth crest and helical angle on tooth side of the cutter is given so as to give a basis for the gear sharper cutter to choose its parameters. to design nonstandard gear sharper cutter by adopting the method mentioned above will simplify the calculation and will increase the efficiency of design

    研究加工不等齒厚的非標準參數漸開齒形,與非漸開齒形復的鎖齒輪插齒刀刀齒的排列、刀具齒數的選擇以及刀具設計的基本方法,介紹用限制區域選擇插齒刀變位系數的新方法,並給出刀具齒頂后角與側螺旋角的關系,為插齒刀參數的選擇提供依據.結果表明,採用上述方法設計非標準復齒輪插齒刀,可簡化計算和提高設計效率
  13. A set of color video camera points directly toward the driver ' s face in order to detect driver fatigue

    列舉了部分疲勞駕駛員的照片、 perclos和眼睛持續時間;給出了部分vb程序源代碼。
  14. 2 ) for making the meshes consistent on the common boundaries of adjoining surfaces, a new approach of boundary discretization is employed. 3 ) the boundary - representation structure is adopted to fulfill the mesh generation over combined surfaces. 4 ) the quality of surface meshes is improved by point creation on 3d scan lines and diagonal swapping procedure

    通過引入可移動的虛邊界解決了面的剖分問題;通過對鄰接面公共邊界的統一處理,保證了組面拼處網格的相容性;以邊界表示數據結構為基礎實現了三維組面的全自動網格剖分;採用空間掃描布點、診斷交換等技術,優化了網格的質量;並以autocad為支撐平臺objectarx為開發工具,開發了一個基於幾何造型的面三角形網格全自動生成程序。
  15. The proposed method has the following properties : area control : users can specify the deforming area of the given mesh with a closed path on the surface to define the influence region of the deformation

    基於幾何基元的網格編輯技術有如下幾個特點:變形區域可控:用戶可以用變形物體面上的一條閉合曲線來定義變形區域。
  16. Draws a green closed curve through the seven points

    繪制一條經過七個點的綠色閉合曲線
  17. Adds a closed curve to this path

    向此路徑添加一個閉合曲線
  18. Open and closed curves in gdi

    Gdi +中的開放閉合曲線
  19. Defines open and closed curves and how to draw and fill them

    定義開放閉合曲線以及如何繪制和填充這些
  20. Closes the curve

    閉合曲線
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