?parabola

parabola發(fā)音

英：[p??r?b?l?]　　美：[p??r?b?l?]

英：　　美：

parabola中文意思翻譯

拋物線

parabola詞形變化

形容詞: parablastic |

parabola常見例句

1 、Keywords Matrix acidizing;Moving and free boundary;Time-variant grid method;Semi-linear parabola equation;Finite difference;Numerical solution.;───基質(zhì)酸化;自由移動邊界;時變網(wǎng)格法;半線性拋物型方程;有限差分格式;數(shù)值解;

2 、And the trace programme of a line ,a arc and a parabola is established.───并編制了直線、圓弧和拋物線的軌跡程序。

3 、In order to discuss the rationality of various warping displacement modes, second-degree parabola, cubic parabola, fourth-degree parabola and cosine function are selected respectively.───為了探討各種剪滯翹曲位移模式的合理性，分別選取二次拋物線、三次拋物線、四次拋物線及余弦函數(shù)等翹曲位移模式進(jìn)行計算；

4 、inverted parabola───反演拋物線

5 、The coefficient of permeability of coal massgas attenuates with increase of volume stress and varies as parabola with porous pressure.The crtical pressnre is difinedas the extreme value of parabola.───得出了煤體瓦斯?jié)B透系數(shù)隨體積應(yīng)力增加而衰減，隨孔隙壓呈拋物線型變化。

6 、critical parabola───臨界拋物線

7 、In the first phase, based on the randomized approach, an initial parabola is created.───在第一階段中，我們采取隨機(jī)選取方式，可得到初始拋物線。

8 、In the third phase, a new voting scheme is presented to determine whether the candidate parabola is the true parabola or not.───在第三階段中，我們使用所提出的新投票系統(tǒng)來確認(rèn)候選拋物線是否為真正的拋物線。

9 、osculating parabola───密切拋物線

10 、NUMERICAL SIMULATION OF THE HYDROMECHANICAL DEEP DRAWING OF PARABOLA WORKPIECES───拋物體形拉深件液壓成形工藝的數(shù)值模擬

11 、Analysis of a Linearly Chirped Grating with the Apodization of Parabola Squared Function on Its Property of Dispersion Compensation───拋物平方變跡線性啁啾光纖光柵色散補(bǔ)償性能分析

12 、Keywords olid solubility bond-parametric function size-factor parabola regularity ellipse regularity binary alloy;───固溶度;鍵參數(shù)函數(shù);尺寸因素;拋物線規(guī)律;橢圓規(guī)律;

13 、Round,elliptical and parabola evaluation methods are studied.The results show that the measuring methods not only have high evaluation resolution but also are beneficial to analysis...───其中對圓評定方法、橢圓評定方法和拋物線評定方法進(jìn)行了研究,實驗結(jié)果表明這些方法不僅具有較高的評定精度,而且還有利于對超精密微切削機(jī)理進(jìn)行分析研究。

14 、An Iterated-Interpolation Method for an Arbitrary 2-Dimensional Parabola in a CNC System───CNC系統(tǒng)中任意平面拋物線的迭代**補(bǔ)法

15 、You should be more open-minded and tolerate irregulation.It is like doing the parabola and hyperbola as the second and third cosmic speed mode.───做大事情，系統(tǒng)更復(fù)雜，能量更大，所以做大事情的指導(dǎo)思想要開放，容許“亂”，更像做拋物線、雙曲線，是第二和第三宇宙速度的運動方式。

16 、parabola of order n───n階拋物線

17 、The Improvement of Compound Parabola Quadrature Formula───復(fù)化拋物線求積公式的改進(jìn)

18 、cubical parabola───拋物撓線三次拋物線

19 、biquadratic parabola───四次拋物線

20 、fitting of a second degree parabola───二階拋物線擬合

21 、hyperbolic parabola───雙曲拋物線

22 、Kepler parabola flight───開普勒拋物線飛行

23 、Research On Painting Fractal Picture with Aitken Parabola Accelerating Algorithm───基于艾特肯加速拋物線算法分形圖形的研究

24 、Keywords T91 steel;oxidation kinetics;cubical parabola;bilinear;───T91鋼;氧化動力學(xué);三次拋物線;雙直線;

25 、The Parabola Approximation Algorithm for Alignment Automation Between a Laser Diode and A Single-Mode Fiber───基于拋物線擬合的光纖自動對準(zhǔn)算法

26 、flow around a parabola───拋物線體繞流

27 、divergent parabola───發(fā)散拋物線

28 、The life is a parabola,it will decline when it reached the vertex.───人生就是一條拋物線，當(dāng)它到達(dá)頂點時，衰落的時刻也就隨之到來了?。?！看人生，與世無爭！?。?/p>

29 、Keywords Parabola Hydraulic deep-drawing Stress distribution;───拋物線;充液成形;應(yīng)力分布;

30 、The curve of life is like the parabola of a projectile which, disturbed from its initial state of rest, rises and then returns to a state of repose.───人生的曲線就像是發(fā)射器的拋物線，脫離了原先的靜止?fàn)顟B(tài)，往上射出，最后又回歸到靜止的狀態(tài)。

31 、parabola Drucker-Prager criterion───拋物線型D-P準(zhǔn)則

32 、China to the ancient timer, “hourglass” for the prototype, the level of 9 different set of stainless steel glass column, “hourglass”, a parabola distribution constitutes a planet track.───以中國古計時器“沙漏”為原形，9根高低不一的不銹鋼鑲玻璃立柱“沙漏”，呈拋物線分布，構(gòu)成行星軌跡。

33 、the petiole lengths and leaf lengths and cork thickness appeared to have a clear second-degree parabola relation with the elevations of the communities;───葉柄長、葉長和栓皮厚度隨海拔高度呈現(xiàn)明顯的二次拋物線關(guān)系;

34 、Application Of Third Power Parabola In Road Design───一種三次拋物線在公路設(shè)計中的應(yīng)用

35 、The cable shape in the bridge’s completion state is not parabolic, nor catenary.It is between parabola and catenary.Actually it is funicular polygon closer to the catenary.───3)在成橋狀態(tài)時主纜的線形既不是拋物線，也不是懸鏈線，而是介于拋物線與懸鏈線之間，更接近于懸鏈線的索多邊形。

36 、The approach of translating parabola ISO code into difference interpolation code───拋物線ISO代碼譯成差分**補(bǔ)代碼及其實現(xiàn)

37 、The application of catenary and parabola theories in tuna longline fishery───懸鏈線和拋物線理論在金**魚延繩釣漁業(yè)中的應(yīng)用

38 、2D analysis of line focus of on-axis parabola───共軸拋物鏡線聚焦性能的2維分析

39 、cubical hyperbolic parabola───雙曲拋物撓線

40 、Neil rs parabola───尼爾拋物線

41 、This paper analyses parabola precision of a cableway of single span,and discusses rise angle while the load is in motion and puts new method of algorithm for rise angle.───分析了單跨索道的拋物線算法,討論了荷重運行時的升角,并提出了新的升角計算方法。

42 、Kink Wave and Parabola Solution for Generalized Fisher Equation───廣義Fisher方程的拋物線解和扭波解

43 、The seepage discharge of the foundation of earth-rock dam decreases gradually and is in a parabola form as the blanket extends.───土石壩壩基滲流量隨鋪蓋的延長逐漸減小，并呈拋物線形分布；

44 、Parabola Clipping Algorithm Based on N-Steps Rendering Theory───基于多步法繪制理論的拋物線裁剪算法

45 、A design of hyperbola and parabola drawing apparatus───雙曲線及拋物線規(guī)的設(shè)計

46 、The Stretch Planish of Small-diameter Parabola Antenna and Analysis on Splice Technique───小口徑拋物面天線旋壓成型及拼焊工藝分析

47 、Research on the Molel for Producing the Precise Die of Parabola Gyre Surface───拋物回轉(zhuǎn)面的精密模具制造模型研究

48 、You can put a vectorgraph read as ” “ shapes, such as a circle, a parabola, and so on, so the scale does not affect its quality.───你可以把矢量圖理解為一個“形狀”，比如一個圓，一個拋物線等等，因此縮放不會影響其質(zhì)量。

49 、double parabola proportioned interpolation method (DPPIM)───雙拋物線比例內(nèi)**法

50 、Based on the iris location,a new approach of parabola integral-difference is proposed to locating eyelid for more effective and more accurate iris recognition in the paper.───為更有效、更準(zhǔn)確地進(jìn)行虹膜識別,在虹膜**的基礎(chǔ)上,提出一種拋物線積分-差分算子用來對眼皮進(jìn)行**。

51 、Construct an animation displaying all pairs of orthogonal tangents to a given parabola.───建構(gòu)一動態(tài)繪圖。展示給定的拋物線外所有成對的正交切線。

52 、"Using the equation of parabola, we obtain for the sheer stresses at any point in the plate."───應(yīng)用拋物線方程,即可得到板內(nèi)任意點的剪應(yīng)力。

53 、That's because you have a goal, and your parabola is directed upwards.───因為你的目標(biāo)，你的拋物線是往上的。

54 、of parabola, we obtain for the sheer stresses at any point in the plate.───應(yīng)用拋物線方程，即可得到板內(nèi)任意點的剪應(yīng)力。

55 、For higher normal pressure,the relationship between tangential resistance and water content is consistent with quadratic parabola.───當(dāng)正壓力較大時，切向阻力與含水量呈拋物線關(guān)系。

56 、By the camera angle of erection and the container，the liquid of rounded container in the image is similar to parabola.───圓形容器中的液位由于受到攝像頭架設(shè)角度和容器的影響，在圖像中是一條近似于拋物線的曲線。

57 、In the 3 soil textures the dynamic change of rhizosphere microorganisms and enzyme activities both turned on a parabola with the peak in the silking stage, and then reducing gradually.───3種土壤玉米根際生物活性的動態(tài)變化呈拋物線，吐絲期達(dá)最大值，此后逐漸下降。

58 、Height Calculating Formulas of Variable Cross-Sections Member for Multi-Section Haunched Type and Multi-Section Parabola Type───多段加腋型及拋物線型變截面桿件高度計算公式

59 、Smooth parabola as a constraint for the motion of a mass point───光滑拋物線約束質(zhì)點運動問題的研究

60 、RCC parabola double curve arch dam───RCC拋物線雙曲拱壩

61 、compound parabola quadrature formula───復(fù)化拋物線求積公式

62 、D by using the first derivative spectrum and REP, and the properest models were index(R2=0.9487)and parabola (R2=0.9392) respectively.───D 是可行的,最適模型分別為指數(shù)(R2=0.9487)和拋物線(R2=0.9392)。

63 、On Quadratic System with a Two-fold Parabola Solution───具有二重拋物線解的二次系統(tǒng)

64 、On the basis of analytic geometry, the projection curve types of intersection lines of cone and cylikder, cone and cone on V plane is hyperbola and cone and sphere is parabola.───中專制圖教科書中 ,對圓柱與圓錐軸線垂直相交時 ,相貫線投影作圖 ,大都采用先找特殊點 ,再用輔助平面法找一般點 ,最后判斷點的可見性并描點連線的方法。

65 、Kink Wave and Parabola Solution to a Class of Nonlinear Evolution Equation───一類非線性發(fā)展方程的拋物線解和扭波解

66 、Ubiety about a circle and a parabola───圓與拋物線的位置關(guān)系

67 、The Path Planning of Robot for the Assembly of Compressor Based on the Method of Parabola Transition───基于拋物線過渡法的環(huán)保壓縮機(jī)裝配機(jī)器人軌跡規(guī)劃

68 、Interpolation parabolas and the asymptotic parabola of a plane curve───平面曲線的**值拋物線與漸近拋物線

69 、parabola of cohesion───內(nèi)聚力拋物線

70 、The parabola diffusion equation (Ct = a + btl/2) gave a best description of the kinetics of Ca adsorption in the soil. Ca adsorption velocity in various treatments appeared in the sequence of Ca + B > Ca + Zn+B > Ca > Ca+Zn.───土壤吸附鈣的動力學(xué)以拋物線**方程(Ct=a+bt1/2)描述最佳,其過程受**機(jī)制的制約,吸附速率以Ca+B>Ca+B+Zn>Ca>Ca+Zn。

71 、Compared with other types of open channel cross-section, the cubic parabola shape open channel is one of the open channels which convey water more efficiently.───與其他形式斷面渠道的比較結(jié)果表明，立方拋物線形斷面渠道也是一種水力較優(yōu)的輸水渠道。

72 、Using the modified method of parabola of Baisanski-Bojanic and the Pfeifer Lemma,the author sets up a global saturation theorem for Trotter-Feller Type Oper-───利用Pfeifer引理和改進(jìn)的Bojanic拋物線技巧,建立Trotter-Feller型算子的整體飽和定理,并給出實例。

73 、This paper studied the case that there is a known point of tangency of a circle and a parabola while the center of the circle is on the recession of the parabola.───應(yīng)用數(shù)形結(jié)合的方法,研究了已知圓與拋物線有一個切點,而圓心在切點處拋物線的凹向的情形。

74 、Determining a Parabola with Four Orderly Points and Its Application in Parametric Interpolation───四點唯一決定一條拋物線及其在參數(shù)**值中的應(yīng)用

75 、Main curve may appear as parabola, ellipse, cubic polynomial, and trigonometric curves.Profiles with different main curve are compared one another at the same dimensions.───以拋物線、橢圓、三次曲線以及三角函數(shù)為例的研究表明，三次曲線構(gòu)成的氣缸型線具有最大的吸氣容積而內(nèi)容積比最小，適用于大排氣量低壓比的機(jī)器；

76 、Curved Cracks Distributed along a Parabola in an Elastic Medium with Piezoelectricity and Anisotropy───壓電彈性體中沿拋物線分布的曲邊裂紋問題

77 、tilted parabola───傾斜拋物線

78 、Keywords T91 steel;High-temperature water-vapour;Oxidation kenetics;Quadratic parabola;Bilinear;───T91鋼;高溫水蒸氣;氧化動力學(xué);二次拋物線;雙直線;

79 、semi-cubical parabola───半立方拋物線

80 、Keywords Logging Unit Curve Fitting;Regression Analysis;Log-log;Parabola Equation;[Unary The Third Power Equation];───錄井儀;曲線擬合;回歸分析;雙對數(shù);拋物線方程;[一元三次方程];

橢圓的長軸和短軸分別指哪個?圖像是什么？

橢圓的長軸和短軸分別是哪個，請看以下圖片：

簡介：橢圓截與兩焦點連線重合的直線所得的弦為長軸；橢圓截垂直平分兩焦點連線的直線所得弦為短軸。橢圓是平面內(nèi)到定點F1、F2的距離之和等于常數(shù)（大于|F1F2|）的動點P的軌跡，F(xiàn)1、F2稱為橢圓的兩個焦點。其數(shù)學(xué)表達(dá)式為：|PF1|+|PF2|=2a（2a>|F1F2|）。研究歷史：阿波羅尼奧斯所著的八冊《圓錐曲線論（Conics）》中首次提出了今日大家熟知的 ellipse（橢圓）、parabola（拋物線）、hyperbola（雙曲線）等與圓錐截線有關(guān)的名詞，可以說是古希臘幾何學(xué)的精擘之作。 直到十六、十七世紀(jì)之交，開普勒（Kepler）行星運行三定律的發(fā)現(xiàn)才知道行星繞太陽運行的軌道，是一種以太陽為其一焦點的橢圓。光學(xué)性質(zhì)：橢圓的面鏡（以橢圓的長軸為軸，把橢圓轉(zhuǎn)動180度形成的立體圖形，其內(nèi)表面全部做成反射面，中空）可以將某個焦點發(fā)出的光線全部反射到另一個焦點處；橢圓的透鏡有匯聚光線的作用（也叫凸透鏡），老花眼鏡、放大鏡和遠(yuǎn)視眼鏡都是這種鏡片。

以上就是橢圓的長軸和短軸區(qū)別以及圖像，希望對您有所幫助。

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