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切线     
相关语句
  tangent
     The Curve y=f(x)(cTangent Limit
     曲线y=f(x)(c切线极限
短句来源
     On condition that points P_1,P_0,P_2 and the respective tangent lines,togetherwith the curvature of one of the three points,say k_0,are given, or that inaddition to points P_1, P_0, P_2, both of the tangent lines and the curvatures ofP_1, P_2, are given, we give the equations of GC~2 pair of quadratic curves.
     若给出点P_1,P_0,P_2和各点切线,以及其中某点的曲率,例如k_0,或者给出点P_1,P_0,P_2,与P_1,P_2点的切线和曲率,文中得出了GC~2二次曲线偶的方程。
短句来源
     C~2 Continuous C-B-spline Curves with Given Tangent Polygons
     带有给定切线多边形的C~2连续的C-B样条曲线
短句来源
     2. The distance between the costal fovea s superior border tangent and the border of the superior endplate. T9 (left: 0. 39 ± 0.533, right: 0.32 ± 0.439);
     2肋凹上缘切线与上终板上缘切线的距离T9(左:0.39±0.533,右:0.32±0.439);
短句来源
     3. The vertical distance between the costal fovea anterior border tangent and the vertebral canal's anterior border tangent. T9(left: 4. 5955 ± 1. 41153, right: 3. 9847 ± 1. 39404);
     3肋凹前缘切线与椎管前缘切线的垂直距离T9(左:4.5955±1.41153,右:3.9847±1.39404);
短句来源
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  tangent line
     The author puts forword the definition and the equation of the curve y=f(x)(ctangent line limit,discusses the relations between the tangent limit,gradual-near line and uniformly continuous.
     给出了曲线y=f(x)(c切线极限的定义及其方程,讨论了切线极限与渐近线、一致连续的关系.
短句来源
     The Tangent Line and Plane of Fractal Sets of Integral Dimension
     整数维分形集的切线与切平面
短句来源
     An Iterative Method for Finding the Real Roots of Functional Equation by the Method of Variation Tangent Line
     用变切线法求方程实根的一种迭代方法
短句来源
     Methods\ Definition of tangent line and plane is introduced to fractal sets by generalizing angle density to bilateral angle density and coangle density.
     方法 通过推广角密度概念为双侧角密度与余角密度 ,将切线与切平面概念引入到分形集中 .
短句来源
     The Calculation of Panel Point and the Imitation of Graph of the Irregular Curve by Means of Tangent Line's Approaching
     用切线逼近非圆曲线的节点计算及图形检查
短句来源
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  tangential
     In the planning of interior tangential field, the distance to the middle line of the body in the first,second and the third transection was (4.012± 1.173) cm, (4.797±1.565) cm, (4.219±1.178) cm, respectively.
     内切线野旁开体中线上、中、下 3个层面分别为 (4 .0 12± 1.173) cm、(4 .797± 1.5 6 5 ) cm、(4 .2 19± 1.178) cm。
短句来源
     Results: CT data showed that the mean volume of right and left lung was 1403±234 cm3 and 1133±186 cm3 respectively. The mean central lung distance (CLD) in the tangential field was 2.4±0.5cm.
     结果:右肺体积为1403±234cm3,左肺为1133±186cm3,切线野中心肺厚度(CLD)平均为2.4±0.5cm。
短句来源
     AN EXPERIMENTAL STUDY OF CRANIOCEREBRAL INJURY CAUSED BY7.62mm BULLETS IN DOGS Ⅰ.COMPARISON OF THE CHARACTERISTICS OF PENETRATING CRANIOCEREBRAL, TANGENTIAL BRAIN AND SKULL INJURIES
     7.62 mm弹颅脑火器伤实验研究——Ⅰ、脑贯通伤、脑切线伤和颅骨切线伤的比较
短句来源
     All of the patients received radical radiotherapy in 2 months after opeation,the median doses given in the fields were DT 53.2Gy in the intramammary field,DT 55.4Gy in the supraclavicular,DT 49.2Gy in the breast tangential field,DT 14.6Gy in the breast boost field,respectively.
     全部病人均于术后2个月内接受根治性放疗,各野的中位剂量分别为内乳DT53.2Gy、锁上DT55.4Gy、全乳切线DT49.2Gy、瘤床追加DT14.6Gy。
短句来源
     The discussion of the part character of tangential facet r=r(s)+να(s) of the space curve(c) r=r(s)
     本文对空间挠曲线 (c) r-r (s)的切线曲面 r=r (s) +νa (s)的局部性质进行探讨。
短句来源
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  tangents
     2. The locas of the intersection points of its tangents with the H-plane is a logarithemic spiral too, Bisides, the angle between these tangents and the H-plane is constant, i. e. sinθ=cosα·cosγ;
     (2)它的切线与H面相交的轨迹也是对数螺线,而且切线与H面的夹角为常数,即sinθ=cosγcosα;
短句来源
     4. Theorem 5.3 For spacelike congruence T generated by the tangents to the geodesic lines (not straight lines) on a spacelike surface in E_1~2, the necessary and sufficient condition that the mapping between the (non-degenerate)focal surfaces preserve the asymptotic lines is thatthe Gauss curvature K,K of the two focal surfaces satisfies KK = — g4. q is geodesic curvature radius of the line which is orthogonal to the geodesic line.
     4.定理5.3 E_1~3中类空曲面S的测地线(非直线)族的切线构成的类空线汇T,其两叶焦曲面(非退化)在同一条光线上两焦点相互对应下保持渐近曲线相互对应的充要条件是两叶焦曲面的Gauss曲率K,(?) 满足K(?)
短句来源
     These theorems represeent the continuity of a force and show that those curves can not be the trajectories of particles if they have no smoothly changed tangents and their curvatures (finite value)are discontinuous.
     这些定理说明力的连续性,表明没有连续变动之切线的曲线及曲率(为有限值)不连续之曲线(例如圆弧及其切线所组成之曲线)都不是质点运动之轨迹。
短句来源
     This paper took tangents of curve as example to introduce a new kind of instructional method——CAD (computer aided design) method, which is more efficient than traditional hand drawing.
     本文在物理化学实验教学中,以对曲线作切线法为例,介绍了一种新的教学方法—计算机辅助作图(CAD)。
短句来源
     In this paper, a planar piecewise cubic Bzier curve is discussed which has edges of a given polygons as tangents.
     讨论了与给定切线多边形相切的 3次Bzier样条曲线 .
短句来源
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  tangent
A characterization of the complexity of a homogeneous space of a reductive groupG is given in terms of the mutual position of the tangent Lie algebra of the stabilizer of a generic point of and the (-1)-eigenspace of a Weyl involution of.
      
This article presents a new tool for fitting a divergence-free vector field tangent to a two-dimensional orientable surface $P \in {\Bbb R}^3$ to samples of such a field taken at scattered sites on P.
      
The system induces a one-parameter C1 transformation group φt(-∞ >amp;lt; t >amp;lt; ∞) over Mn and, thus, naturally induces a one-parameter transformation group of the tangent bundle of Mn.
      
The results show that the calculated magnetic intensity component normal to the boundary of the structure reaches its maximum at the point force acted while the component tangent to the boundary inverses its direction sharply.
      
The location of the tangent point is revised according to the tangency condition.
      
更多          
  tangent line
In this paper, we describe the defining equations of rational cuspidal plane curves having exactly one cusp such that the tangent line at the cusp intersects only at the cusp.
      
In this paper, we will prove a "tangent line touching" condition for supersolutions of the infinity Laplacian.
      
The point where an extension line from the base line intersects a tangent line to the departure curve was selected as the transition point in the exothermic curve.
      
The bifurcation point where a satellite component buds from another component is characterized by the existence of the common tangent line between the two osculating components appearing in the degree-n bifurcation set.
      
To a closed convex smooth curve in the plane the dual billiard transformation of its exterior corresponds: given a point outside of the curve, draw a tangent line to it through the point, and reflect the point in the point of tangency.
      
更多          
  tangential
Based on the high-resolution body wave tomographic image and relevant geophysical data, we calculated the form and the vertical and tangential velocities of mantle flow.
      
The velocities of the vertical mantle flow are about 1-4 cm per year and the tangential velocities are 1-10 cm per year.
      
The model was tested for the case of tangential stresses when studying the polyacrylamide-aluminium acetate solutions and for the normal stresses, when studying the strain of the rock samples saturated with oil.
      
The flow of a simple gas along a plane surface under the action of tangential temperature gradient is considered.
      
We study a magnetic field distribution that is nonuniform and sheared like in tangential discontinuities.
      
更多          
  tangents
When γ=0 and the wave number α is fairly small, the periodic solution has a singularity, as predicted in [14]: at the crest of the wave a corner point appears; the angle between the tangents at this point ?=140-150.
      
The shape and geometric properties of such an analytic peak were characterized by a triangular frame formed by the tangents at the inflection points and the asymptotes to peak branches.
      
Theorems on tangents to subvarieties of complex tori
      
Variations in the positions of the intersection points of tangents to ray structures in the polar corona of the Sun during the solar cycle are considered.
      
Indeed, the higher the harmonic number in an axisymmetric field, the closer the intersection point of the field-line tangents (the magnetic focus) to the solar surface.
      
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