直線與曲線 的英文怎麼說
中文拼音 [zhíxiànyǔqūxiàn]
直線與曲線
英文
line & curve- 直 : Ⅰ形容詞1 (成直線的; 硬挺的) straight; stiff 2 (跟地面垂直的; 從上到下的; 從前到后的) erect; v...
- 線 : 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...
- 曲 : 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...
- 直線 : 1. (不彎曲的線) straight line2. (急劇的) steep; sharp
- 曲線 : [數學] curve; bight; bought; profile; net曲線板 french curve; irregular curve; curve board; splin...
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Third, it is this " moment " of the segment of space - time which based on the the philosophy of the nature and describing the mechanical movement that symbolize the transform from the view of integralization in classical atomism of mathematics to the view of integralization of modern real number
另外,正是基於新的自然哲學的、作為描述機械運動的時空片段的「瞬」標志著古典數學原子論的積分觀向現代的分割實數連續統的積分觀的轉化,而現代數學的微分概念更是直接源於描述機械運動的速度和與運動軌跡密切相關的曲線的切線問題。The result of mixing these two air masses can be around anywhere on the straight line joining b and s. notice that part of the line lies
這兩團混合起來,結果落入b與s相連的直線附近。留意直線部份處在均衡曲線以上,即超飽和。The relation of radius of curvature and error as well as formulas of increasing parameters on condition of constant error are diverted. the equation of the line on the center of approximate circular arc is obtained , and it can avoids the trouble that numerical solution owns possibility of no convergence and simplifies node calculation of non - circular curve
導出了曲率半徑與逼近誤差之間的關系和等誤差條件下的參數遞推公式,建立了通過逼近圓弧圓心的直線方程和圓心坐標計算公式.按這種方法用圓弧逼近平面參數曲線,不需要求解非線性方程組,避免了計算可能不收斂的麻煩,簡化了非圓曲線的節點計算過程Based on the geometry characteristics of bertrand surfaces, the complicated surface conjugation issue can be discussed with their directrix line. according to the different generatrix line which can be divided into common plane curve, circular - arc curve and straight line, bertrand conjugation surfaces are parted into three typical types, and the basic equation and differential formula are established, then the conjugation conditions are found. aiming at the inclusive problem, the structure condition is given
論文將白川德共軛按母線為一般平面曲線、圓弧、直線分為三種典型類型,分別建立了共軛的基本方程與微分關系式,據此給出了各種類型的共軛基本條件,發現這是一類更強更嚴的條件,存在有相容問題,進而研究了白川德共軛的結構條件,至此確立了白川德共軛的基本框架。The mathematical statistics method and extrema variance clustering method can be used to visible automatic classifying and reading of logging curves. the lithofacies classifying program basing on multi - mineral model analysis presents a new method to analyze logging - facies and more accuracy and visualized logging facies section can be reached by using this method. in addition, it supplies reliable lithologic layering reference for search and evaluation of oil / gas caprock and it also made up for the high cost of core - drilling and the inaccuration between lithic fragment description and depth
採用基於「數理統計-極值方差聚類法」的面向對象可視化操作方法可有效地解決測井曲線的可視化自動分層取值問題;而基於多礦物模型分析的巖相劃分程序又提供了一種新的測井相分析方法,能得到更為準確直觀的測井相剖面,為尋找和評價油氣蓋層提供了可靠的巖性分層依據,同時彌補了鉆井取心費用高和錄井巖屑描述與深度有誤差的缺陷。The directrixes of the in former two transmissions are the loxodrome and the geodesic on the pitch cones, that of the latter is an equal - pitch line along the direction of straight generatrixes in the hyperboloid surface, also is the vertical trajectory of the straight generatrixes
前兩種傳動形式的準線分別為節錐面上的斜航線與測地線,後者的準線為單葉雙曲面上沿直母線方向的等螺距曲線,且為直母線族的正交軌線。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,並結合區內構造發育特徵,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,並結合孔隙演化特徵,探討儲集條件在油氣聚集成藏中的作用;利用微毛細管壓力曲線法和壓汞法,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,並結合水文地質分佈特徵,指出有利於油氣保存的地區;根據區內存在的各種圈閉類型,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,動態地綜合評價石炭系?下三疊統油氣成藏條件,並結合構造演化特徵,預測其油氣藏類型和成藏模式。In this paper, the finite - element numerical analysis calculation is applied to the foundation of high - rise and multi - floor building and the evolvement law of stress and displacement of tunnel used by urban traffic to explore the mutual influence between the wall rock of underground space and high - rise building foundation, taking account of the specific construction situation in the " sanmu garden " project in dadukou district in chongqing, from the perspective of underground space static - force structure stability analysis to open a underground tunnel with 6m in span and 7. 5m in height for track traffic 20m below the surface. this paper, taking considerations of three different states, i. e. the natural state without any artificial interference, the state of high - rise buildings on the surface, and the underground tunnel state with excavation for track traffic, and four plane lines and four vertical lines, analyzes and studies the distributing law of stress and displacement of calculation section from the following aspects : ( 1 ) the main stress vectorgraph, displacement distribution graph ( ux, uy ) and chromatogram graph of stress isoline ( 1, 2, xy ) of section under different states ; ( 2 ) the contrastive distribution curve of stress ( 1, 2, xy ) of different plane and vertical lines under the same state ; ( 3 ) the contrastive distribution curve of stress ( 1, 2, xy ) of the same plane and vertical lines under different states, wishing to provide references for underground space utilization and project designing and construction of the tunnel under high - rise buildings in the future
本文結合重慶市大渡口區「三木花園」開發建設項目,從地下空間靜力結構穩定性分析角度出發,針對在該項目中涉及的高層和多層建築物以及在其地下20米處開挖了一個用於軌道交通的跨度6米,高7 . 5米的地下隧道這一具體工程情況,採用2d - 3d -有限元結構分析程序對高層與多層建築物的地基基礎及其與城市軌道交通使用的地下隧道圍巖的應力與位移演變規律進行了有限元數值分析計算,探索了地下空間圍巖與高層或多層建築物地基基礎之間的相互影響,通過考慮未受到任何人為擾動影響的天然狀態、地表存在多層或高層建築物狀態和地下開挖用於軌道交通的地下隧道狀態等三種不同狀態以及4個水平剖線和4個垂直剖線等不同情況,從以下幾個方面具體分析研究了計算斷面的應力與位移分佈規律: ( 1 )在各種不同狀態下計算斷面的主應力矢量圖、位移分布圖( ux 、 uy )以及應力等值線色譜圖( _ 1 、 _ 2 、 _ ( xy ) )等; ( 2 )相同狀態下不同水平與垂直剖線的應力_ 1 、 _ 2和_ ( xy )對比分佈曲線; ( 3 )不同狀態下相同水平或垂直剖線的應力_ 1 、 _ 2和_ ( xy )的對比分佈曲線等,為今後在對地下空間的開發利用以及在高層建築物地下開挖硐室時的工程設計和工程施工提供參考依據。The method is as follows : calculating the length, angles and coordinates of pre - cast hollow slab in cartesian coordinate system, and then adjusting the width of hollow slab beams and length of cantilever boards to make the linear cantilever slabs close to the transition of mute
具體方法是:採用直角坐標系計算預制空心板斜長、首尾夾角和起終點坐標,根據計算結果與路線線形之差,多次調整空心板梁的梁板寬度和懸臂長度,使外懸臂折線滿足路線的緩和曲線線形。The his - tagged peacl - gfp purified from the supernatants could polymerize into green fluorescent filamentous structures with diameter, length and shape being identical to that of muscle f - actins, which could be labeled by tritc - phalloidin ( a specific agent for staining actin microfilaments ), and were identified as having a 9 nm diameter by negative staining, corresponding with that of the muscle f - actins ( 7 - 10 nm ). under polymerization conditions, his - tagged peacl - gfp polymerized with kinetics similar to those of skeleton muscle actin, that is, an obvious lag nucleation period at the beginning of polymerization and an s - like typical polymerization curve could be obtained. the critical concentration is 0. 75 umol / l near to that of chicken muscle actin ( 0. 56 umol / l ) under the same condition
熒光標記結合熒光顯微觀察表明:從可溶性上清中純化的his - taggedpeac1 - gfp聚合形成的微絲不僅可以直接在熒光顯微鏡下觀察,也可被微絲的特異標記物鬼筆環肽所標記,而且其直徑、長度以及形態上與已知的聚合肌動蛋白熒光絲一致;電鏡負染的結果進一步證實其直徑為9nm ,與傳統微絲直徑相當( 7 ? 10nm ) ;聚合曲線有明顯的停滯期,為典型的s型聚合曲線,聚合臨界濃度為0 . 75 mol l ,這一結果與已有報道相似。The dissertation is mainly including four section : the first is the experiments done in the tank, which will supply the reliable information of imaging data ; the second is image edge detection by the use of the art of the zernkie moments, which is used to detect the liner and threaded edge of the object, the third is the underwater camera calibration technique, the forth is automatic positioning the location of the camera by used of the art of cross - ratio, the result of which is satisfied
本文工作分為四個部分:第一部分是水槽實驗部分,它為后續的工作提供了可靠的圖像數據信息;第二部分是基於zom距的直線、曲線邊緣提取技術及相關的與處理技術;第三部分,水下攝像機標定技術研究,基於改進的tsai演算法,採用逐步分解的標定策略。並探討了一種相對簡單的、靈活的標定技術;第四部分是攝像機定位技術研究,採用具有平移不變性的交比進行攝像機定位,模擬試驗的最大誤差不超過2 ,效果還是令人滿意的。By combining randomized hough transforms ( rht ) and curve fitting method together, the geometric detection algorithms of lines, circles and ellipses are derived respectively and have advantages of automation, swift, precision and robustness as used in complex background
將rht與曲線擬合有機結合,分別提出了直線、圓、橢圓檢測演算法,該演算法能在復雜背景下、全場范圍內,自動、快速、精確、魯棒地完成檢測任務。The experimental results is shown as followings : ( 1 ) the cyclic flow stress - strain curves in an incremental step test could be expressed as the power law relation : ( 2 ) when the strain amplitude is lower during cyclic deformation tests under constant strain control, softening firstly appears, then gradually hardens with the increasing numbers of cycle ; when the strain amplitude is higher, hardening firstly appears, then gradually softens
試驗結果表明: ( 1 )循環流變應力與應變的相互關系曲線均符合冪律關系式: ( 2 )在室溫下進行恆應變幅循環變形過程中,當所控制的應變幅較小時,該材料首先出現循環軟化,之後隨循環周次的增加直至循環失效前該材料出現了硬化現象。當應變幅較大時,該材料開始出現硬化,然後隨循環周次的增加才出現軟化。It presents the rigorous method to calculate the intersecting point coordinate of the straight line with the parallel to the easement curve
提出了計算直線與緩和曲線平行線交點坐標的嚴密方法。Analysis of non - verticality of the center line of cylinder with the center line of bearing of crank shaft
氣缸中心線與曲軸軸承中心線垂直度的分析By use of the relationships between the hermite polynomial and the laguerre polynomial, the eigenequations of one - dimensional harmonic oscillator and hydrogen atom are conversed into the same equations in form. therefore the relationships between energy levels and wave functions of one - dimensional harmonic oscillator and hydrogen atom are found. through the coordinates transform, the relationships between energy levels and wave functions of two - dimensional harmonic oscillator and hydrogen atom are found
首先綜述了諧振子與氫原子的基本理論的研究現狀,並在此基礎上對諧振子與氫原子的關系展開了研究,通過厄密特方程與拉蓋爾方程的相互轉化,將一維諧振子與一維氫原子的本徵值方程轉化為相同形式的方程,從而比較得出它們能量及波函數間的關系,並通過坐標變換將直角坐標系下二維氫原子的本徵值方程轉化成與曲線坐標系下二維諧振子的本徵值方程相同的形式,從而得出二維氫原子與二維諧振子的能量及波函數的關系。Apply some actual operation data and curve, have verified the correctness of mathematics model, have certain application reference meaning for design and the research of the dc arc furnace
並且應用一些實際運行數據與曲線,驗證了數學模型的正確性,對直流電弧爐的研究與設計具有一定的應用參考意義。I look at these bridges as giant sculptures suspension bridges especially, they have these incredible lines, these incredible curves
我把這些大橋視為宏大的雕塑,特別是懸索橋,它們擁有讓人難以置信的直線與曲線造型。The project is used which measuring instrument moved along axis and the measured quartz tube rotated and fixed ort a position. according to data of outer diameter and wall thickness of different sections and positions, it can calculate the parameters of section area, ellipticity, wall thickness error, flexibility and so on
系統將激光掃描綜合測量儀、直線與回轉伺服控制系統和計算機有機地結合,採用測量儀軸向移動,而被測石英管在固定位置上轉運而不移動的測量方案,根據測量出多個截面和多個不同位置的外徑和壁厚數據,計算出被測石英管的截面積、橢圓度、偏壁度、彎曲度等其它參數。In the multi - oligarchs cournot model of non - linear demand function condition of the right angle hyperbolic, the enterprise only can make a profit when the majority of enterprises in the profession participates in the annexation is proved and the number of the enterprise which the profession can hold in the balanced market scale is explained when the enterprise has the fixed cost in the open market
摘要通過以直角雙曲線為需求函數的行業的多寡頭骨諾模型的分析,證明了行業中企業的兼并只有在大部分企業參與時才是有利可圖的,並給出了在開放性的市場中,當企業存在固定成本時在均衡市場規模下所能夠容納的企業數目。分享友人