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regular curve
相关语句
  正则曲线
     The following theorem is proved:Let AT be the maximum of the curvature of a regular curve C, A Ban arc of C and /thelength of AB. If - then the angles formed by the chord of A Band the tangents at Aand B respectively arc< rK/.
     主要证明了定理 设正则曲线C的曲率的最大值是K,AB是C上的一段弧,其长为l,若l<π/K,+则AB的每一弦切角都不大于1/2Kl.
短句来源
     Let σ be a regular curve, P and Q two simple polygons. This paper discusses the problem of deciding whether P collides with Q when P takes rigid body displacement along curve σ, and gives an O(mn) time decision algorithm, where m and n are the numbers of venices of P and Q, respectively. The algorithm is optimal in the worst case.
     设σ为平面内的正则曲线,P与Q为平面内的两简单多边形.本文讨论P沿曲线σ作定姿态刚体移动时是否与Q相碰撞的问题,并给出O(mn)时间的最坏情况下的最优算法,这里m与n分别为P与Q的顶点数.
短句来源
     Collision with a fixed simple polygon Q may occur while a simple polygon P takes a rigid body displacement along regular curve σ . An optimal algorithm in worst case for collision test is given on O(mn) time, where m and n are sizes of P and Q . When P is a convex polygon, another practical algorithm for this collision test is designed by boundary combination operation of polygons and winding number with its algebraic properties.
     研究了简单多边形P沿正则曲线σ作刚体运动时是否与平面上另一固定的简单多边形Q碰撞的判断问题,给出了在最坏情况下最优时间复杂度的完备算法,并在P为凸多边形时,给出了一个基于多边形边界组合运算和环绕系数及其代数性质的简单实用算法
短句来源
     Any regular curve that can be expressed by the vector parameter equation and which Frenet - frame exists may be interpolated by this method.
     凡是可表示为矢量参数方程、且Frenet标架存在的正则曲线,都可以用该方法 进行插补。
短句来源
     Any regular curve that can be expressed by the vector parameter equation may be interpolated by this method.
     凡是可以表示为矢量参数方程的正则曲线 ,都可以用该方法进行插补。
短句来源
  “regular curve”译为未确定词的双语例句
     The results show that the max UV dose rate is 500.0 mW m-2 and the min UV dose rate is 9.7 mW m-2 at local noon of 1997. For clear sky, the variations of daily UV dose rate are regular curve and UV dose rate at noon is larger than that at morning and evening.
     结果表明,1997年日正午最大生物有效紫外辐射剂量率(UV dose rate)达到500mW m-2,最小值为9.7 mW m-2;
短句来源
     2. Obtaining of setting value of track of regular curve.
     2、规则曲线的轨迹设定值的获取。
短句来源
     The results showed that cither s-erum enzyme of myocardial or the blood viscosity level changed w -ith a regular curve.
     本文旨在探讨全血粘度在AMI时的变化规律,及与心肌酶学的关系。
短句来源
     By using least square theory(LST), the authors established geometric collation models of regular curve features such as road alignmnts (straight, circle, transition curve and the combination of them) and promoted relevant precision evaluation criteria of digitized features. All the researches are of practical reference values to deal with the precision evaluation and data quality control problems in GIS spatial database.
     采用平差理论建立了道路线状要素(如道路直线段、圆曲线和缓和曲线以及其组合曲线)数字化数据几何纠正的数学模型,并给出了衡量数字化成果质量的精度方法,对研究并解决GIS数据的精度评定和质量控制具有实用参考价值.
短句来源
     With the special kinematics and kinetics law of major-minor connecting rod mechanism in gas engine,based on expression function integrated into regular curve and optimizing module provided by UG software,the optimized structural parameters of major-minor connecting rod mechanism were educed through minimizing the differences tribology characteristic between in piston of major cylinder and piston of minor cylinder,and kinematics and kinetics characteristics were reappeared with emulational curve mode.
     根据关节式曲柄连杆机构独特的运动学、动力学规律,利用UG软件所提供的表达式、规律曲线和优化等模块,给出使主、副气缸的摩擦学特性尽量保持一致的最佳结构参数,并以仿真曲线的方式再现了运动学和动力学特性的变化规律。
短句来源
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  相似匹配句对
     curve
     曲线
短句来源
     ON REGULAR HILBERT BOUNDARY PROBLEMS IN INFINITE CURVE
     无穷曲线上正则型Hilber边值问题
短句来源
     2. Obtaining of setting value of track of regular curve.
     2、规则曲线的轨迹设定值的获取。
短句来源
     Application of T-S Curve
     T-S图的应用
短句来源
     On P~s-Regular Groups
     关于P~S—正则群
短句来源
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  regular curve
A regular curve in a pseudo-Riemannian manifold is called a circle if it is an extrinsic sphere.
      
We give an extension of the Fenchel-Borsuk result by introducing the total absolute torsion-curvature KT(γ) for regular curves γ whose tangent indicatrix is a piecewise regular curve (τ-closed curves).
      
Every regular curve can be parametrized to have a constant speed but the parametrization is rarely known explicitly.
      
The interpretation of the generalized Jacobian as a rigidificator for the Jacobian of a regular curve is not surprising (cf.
      
Let D denote the interior of a piecewise regular curve of R2 having a point with Gauss curvature different from zero.
      
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By theoratical analysis and experimental research,it's certain that in the process of th epitaxial growth of silicon by the reduction Sicl_4-H_2 the difference of the ethickness of the stagnant layer over the silicon wafers is the main reason to cause the difference of the thickness of the epitaxial layers.In the experimental research,we get a regular curve for the growth of epitaxial layers.According to this curve,we made some selections among the technological condictions of the growth of the epitaxial...

By theoratical analysis and experimental research,it's certain that in the process of th epitaxial growth of silicon by the reduction Sicl_4-H_2 the difference of the ethickness of the stagnant layer over the silicon wafers is the main reason to cause the difference of the thickness of the epitaxial layers.In the experimental research,we get a regular curve for the growth of epitaxial layers.According to this curve,we made some selections among the technological condictions of the growth of the epitaxial layers.We have made a good improvement in the thickness consistence of the epitaxial layer,in prevention of the crown of the edge of the epitaxial layer,and in the elevation of the technical level.

本文通过理论分析和实验研究确定:在卧式反应室中 SiCl_4—H_2还原法生长硅外延层的过程中,硅片上面滞流层厚度一致性差异是导致硅外延层生长厚度一致性差的重要因素。在实验研究中得出了外延生长的一些规律曲线;根据这些曲线对外延生长的工艺条件进行了选择,在改善外延层厚度一致性、防止外延片翘边、提高工艺水平等方面均取得较明显的效果。

Let r= r(t) be a regular curve on (a, b) and its torsion is identicallyzero. Is this curve a plane curve? Fristly we consider an example asfollows: We can show that r (t) is a C~∞ regular curve and its torsion is identically zero. But the curve lies in the xy plane for t<0 and in the xz plane for t>0. So the curve is not a plane curve. Then we can show the result as follows: Let r (t) be a C~∞ regular curve on (a, b ) and there are only singular point of curvatur...

Let r= r(t) be a regular curve on (a, b) and its torsion is identicallyzero. Is this curve a plane curve? Fristly we consider an example asfollows: We can show that r (t) is a C~∞ regular curve and its torsion is identically zero. But the curve lies in the xy plane for t<0 and in the xz plane for t>0. So the curve is not a plane curve. Then we can show the result as follows: Let r (t) be a C~∞ regular curve on (a, b ) and there are only singular point of curvatur K (t) = 0. The curvee is a plane curve if and onlyif its torsion is identically zero.

现行微分几何教科书中有一个关于曲线的定理:曲线是平面曲线的充要条件是曲线上每一点的挠率为零。实际上,这个结论是不正确的。这可以用下述反例来说明。

This paper shows a newest result taken by the authors, observing and studying the radiation characteristics of arid-cold type snowcover of thewestern hilly area of Tianshan Mt of our country, in the Tianshan Stationof Snowcover Research Academia Sinica, during the winter 1986 and the sp-ring 1937. In this article, some physical parameters and optical characteri-stics are given over western Tianshan hilly area's snowcover radiation, andaccording to the data obtained, is drawn a ten-days varied curve of snowco-ver's...

This paper shows a newest result taken by the authors, observing and studying the radiation characteristics of arid-cold type snowcover of thewestern hilly area of Tianshan Mt of our country, in the Tianshan Stationof Snowcover Research Academia Sinica, during the winter 1986 and the sp-ring 1937. In this article, some physical parameters and optical characteri-stics are given over western Tianshan hilly area's snowcover radiation, andaccording to the data obtained, is drawn a ten-days varied curve of snowco-ver's albedo. It is drafted the corresponding conjoining-equation: A= 1 -1.66X10~(-2)D, and is found the curve of the variation law of attenuation of sn-owcover to short wave radiation, and is pointed out satisfying the regularequation:R=Roe-ax. On this base, the authors pointed out the varied byday characteristic of the participated quantities of snowcover radiation, co-rresponding regular curve and relative equation. The report elaborated andexplicated theoretically the regular curves and phoeomena, especially men tioned an important phoenomenon that the variation of the wave-radiationof snowcover is presented as a convex type curve in winter and as a concave type curve in spring. The authors nominated the convex type curve nor-mal type" and concave type curve "anormal type". The authors recognizedthat two explications of two phoenomena, although imperfect, are reliableand convincing, in respect to the characteristics of hilly area in this region.The report studied also the close relationship between the daily variationof snow heat flux and underground heat flux and the sun radiation, resear-hed as well into some value relationship of the snowcover cumulation andmelting with the frozen ground layer. About the question that the particid-ated quantities of snowcover radiation presented a quasi-normal distributionin function of the sun, the authors gave also the corresponding functionalequation:

文中讨论了天山西部山地积雪辐射的若干物理参量及其光学特点,根据所测资料,对各种规律曲线和现象也给出了理论上阐述和说明。尤其文中提到,在积雪的长波辐射变化中,冬季呈凸型线,春季呈凹型线,笔者称前者为正常型,后者为反常型,认为就该地区的山地特点而论,此结论是有说服力的。

 
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