parabola

[pə'ræbələ]

n.[数]抛物线

例句与用法：

This is an ancient parable.

这是一个古老的寓言。

Jesus taught in parables.

耶稣以比喻讲道。

词形变化：

形容词: parablastic |

n.

1. 【数】抛物线

2. 抛物线状圆碟式天线

parabola

名词复数：parabolas

词形变化：

形容词: parablastic |

词义辨析：

同义参见:

arch¹

parabola[pə'ræbələ]n.1.■【数学】抛物线2.■抛物线体；碗状物(如话筒等)

1. a symmetrical open plane curve formed by the intersection of a cone with a plane parallel to its side. The path of a projectile under the influence of gravity follows a curve of this shape
   抛物面；抛物线
   

1. late 16th cent.: modern Latin, from Greek parabolē 'placing side by side, application', from para- 'beside' + bolē 'a throw' (from the verb ballein)
   

parabola

名词 parabola:

a plane curve formed by the intersection of a right circular cone and a plane parallel to an element of the curve

parabola

■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)在成桥状态时主缆的线形既不是抛物线，也不是悬链线，而是介于抛物线与悬链线之间，更接近于悬链线的索多边形。

■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种土壤玉米根际生物活性的动态变化呈抛物线，吐丝期达最大值，此后逐渐下降。

■An Iterated-Interpolation Method for an Arbitrary 2-Dimensional Parabola in a CNC System

CNC系统中任意平面抛物线的迭代插补法

■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,最适模型分别为指数(R2=0.9487)和抛物线(R2=0.9392)。

■parabola of order n

n阶抛物线

■RCC parabola double curve arch dam

RCC抛物线双曲拱坝

■Keywords T91 steel;oxidation kinetics;cubical parabola;bilinear;

T91钢;氧化动力学;三次抛物线;双直线;

■Keywords T91 steel;High-temperature water-vapour;Oxidation kenetics;Quadratic parabola;Bilinear;

T91钢;高温水蒸气;氧化动力学;二次抛物线;双直线;

■Application Of Third Power Parabola In Road Design

一种三次抛物线在公路设计中的应用

■Kink Wave and Parabola Solution to a Class of Nonlinear Evolution Equation

一类非线性发展方程的抛物线解和扭波解

■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.

与其他形式断面渠道的比较结果表明，立方抛物线形断面渠道也是一种水力较优的输水渠道。

■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.

中专制图教科书中 ,对圆柱与圆锥轴线垂直相交时 ,相贯线投影作图 ,大都采用先找特殊点 ,再用辅助平面法找一般点 ,最后判断点的可见性并描点连线的方法。

■critical parabola

临界抛物线

■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.

为了探讨各种剪滞翘曲位移模式的合理性，分别选取二次抛物线、三次抛物线、四次抛物线及余弦函数等翘曲位移模式进行计算；

■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.

为更有效、更准确地进行虹膜识别,在虹膜定位的基础上,提出一种抛物线积分-差分算子用来对眼皮进行定位。

■fitting of a second degree parabola

二阶抛物线拟合

■The life is a parabola,it will decline when it reached the vertex.

人生就是一条抛物线，当它到达顶点时，衰落的时刻也就随之到来了！！！看人生，与世无争！！！

■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.

人生的曲线就像是发射器的抛物线，脱离了原先的静止状态，往上射出，最后又回归到静止的状态。

■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.

以中国古计时器“沙漏”为原形，9根高低不一的不锈钢镶玻璃立柱“沙漏”，呈抛物线分布，构成行星轨迹。

■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.

以抛物线、椭圆、三次曲线以及三角函数为例的研究表明，三次曲线构成的气缸型线具有最大的吸气容积而内容积比最小，适用于大排气量低压比的机器；

■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.

你可以把矢量图理解为一个“形状”，比如一个圆，一个抛物线等等，因此缩放不会影响其质量。

■tilted parabola

倾斜抛物线

■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，系统更复杂，能量更大，所以做大事情的指导思想要开放，容许“乱”，更像做抛物线、双曲线，是第二和第三宇宙速度的运动方式。

■Smooth parabola as a constraint for the motion of a mass point

光滑抛物线约束质点运动问题的研究

■2D analysis of line focus of on-axis parabola

共轴抛物镜线聚焦性能的2维分析

■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...

其中对圆评定方法、椭圆评定方法和抛物线评定方法进行了研究,实验结果表明这些方法不仅具有较高的评定精度,而且还有利于对超精密微切削机理进行分析研究。

■On Quadratic System with a Two-fold Parabola Solution

具有二重抛物线解的二次系统

■parabola of cohesion

内聚力抛物线

■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.

分析了单跨索道的抛物线算法,讨论了荷重运行时的升角,并提出了新的升角计算方法。

■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引理和改进的Bojanic抛物线技巧,建立Trotter-Feller型算子的整体饱和定理,并给出实例。

■semi-cubical parabola

半立方抛物线

■Curved Cracks Distributed along a Parabola in an Elastic Medium with Piezoelectricity and Anisotropy

压电弹性体中沿抛物线分布的曲边裂纹问题

■double parabola proportioned interpolation method (DPPIM)

双抛物线比例内插法

■cubical hyperbolic parabola

双曲抛物挠线

■hyperbolic parabola

双曲抛物线

■A design of hyperbola and parabola drawing apparatus

双曲线及抛物线规的设计

■inverted parabola

反演抛物线

■divergent parabola

发散抛物线

■the petiole lengths and leaf lengths and cork thickness appeared to have a clear second-degree parabola relation with the elevations of the communities;

叶柄长、叶长和栓皮厚度随海拔高度呈现明显的二次抛物线关系;

■biquadratic parabola

四次抛物线

■Determining a Parabola with Four Orderly Points and Its Application in Parametric Interpolation

四点唯一决定一条抛物线及其在参数插值中的应用

■That's because you have a goal, and your parabola is directed upwards.

因为你的目标，你的抛物线是往上的。

■Keywords olid solubility bond-parametric function size-factor parabola regularity ellipse regularity binary alloy;

固溶度;键参数函数;尺寸因素;抛物线规律;椭圆规律;

■Ubiety about a circle and a parabola

圆与抛物线的位置关系

■By the camera angle of erection and the container，the liquid of rounded container in the image is similar to parabola.

圆形容器中的液位由于受到摄像头架设角度和容器的影响，在图像中是一条近似于抛物线的曲线。

■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.

土壤吸附钙的动力学以抛物线扩散方程(Ct=a+bt1/2)描述最佳,其过程受扩散机制的制约,吸附速率以Ca+B>Ca+B+Zn>Ca>Ca+Zn。

■The seepage discharge of the foundation of earth-rock dam decreases gradually and is in a parabola form as the blanket extends.

土石坝坝基渗流量随铺盖的延长逐渐减小，并呈抛物线形分布；

■In the first phase, based on the randomized approach, an initial parabola is created.

在第一阶段中，我们采取随机选取方式，可得到初始抛物线。

■In the third phase, a new voting scheme is presented to determine whether the candidate parabola is the true parabola or not.

在第三阶段中，我们使用所提出的新投票系统来确认候选抛物线是否为真正的抛物线。

■Parabola Clipping Algorithm Based on N-Steps Rendering Theory

基于多步法绘制理论的抛物线裁剪算法