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- spherical and hyperbolic space 球面空间和双曲空间
- Both spherical and regular crystalline forms are relatively rare. 球形的和规则的球晶形成相对来说很稀少。
- The simplest space with negative curvature is called hyperbolic space, which is defined as space with constant negative curvature. 最简单的负曲率空间称为双曲空间,这个空间处处都有相同的负曲率。
- The discreteness of the isometry group of complex hyperbolic space, especially, complex 2-dimension, is a remarkable field people studied in. 复双曲流形上的等矩群是离散群的一个延伸,其离散准则,特别是2维的情况,是人们目前研究的主要对象,如[2,6,7]等,都是这方面的工作。
- The concept of ellipse is extended to hyperbolic space and the equation is discussed. Some geometric data of ellipse, such as symmetries, will be considered. 摘要在双曲空间中引进相应的椭圆概念、讨论椭圆的方程,并对椭圆的对称性等几何性质做出细致考察。
- Finite difference methods for solving elliptic, parabolic and hyperbolic PDEs. 求解椭圆型,抛物型方程和双曲型偏微分方程的有限差分法。
- Some geometric data of ellipse in hyperbolic space are considered, such as set inclusion, arc length, geodesic curvature, curvature, area and total curvature. 在双曲空间中,考察椭圆的包含关系,对弧长元素、测地曲率、曲率、面积及全曲率等几何量做出细致考察。
- Some geometric data of ellipse in hyperbolic space are considered,such as set inclusion,arc length,geodesic curvature,curvature,area and total curvature. 在双曲空间中,考察椭圆的包含关系,对弧长元素、测地曲率、曲率、面积及全曲率等几何量做出细致考察。
- With PRD PEEM's both spherical and semi-spherical pipe ends are possible. 可以使用PRD球形和半球形的管道终端。
- Using the concept of pseudo-inner product, this paper generalize the Eudidean Routh theorem to two dimensional hyperbolic space H~2. Meanwhile, the hyperbolic Menelaus theorem and Ceva theorem are proved. 利用伪内积的概念,将欧氏平面上的Routh定理推广至二维双曲空间H~2,并证明了双曲Menelaus定理及Ceva定理。
- This general solution consists of either the combinations of trigonometric and hyperbolic functions,or algebraic polynomials. 一般解包括三角函数和双曲线函数组成的解,还有代数多项式解。
- A new method to fabricate optical microstructures with different profiles such as spherical and aspherical outlines is discussed. 摘要讨论了一种制作球面和非球面轮廓光学微结构的新方法。
- Comparison between the non-hyperbolic and hyperbolic NMO correction results of 3D converted waves shows that the non-hyperbolic method is better than the hyperbolic method. 三维转换波非双曲动校正和常规双曲动校正结果对比表明,非双曲方法优于双曲方法。
- The stresses and strarns of cylindrical spherical and paraboloid shells can be solved when the drawing unsteadiness happen. 文中就圆柱壳形、圆球壳形、抛物线壳形封头等压力容器的失稳状态,分别求出它们的应力和应变。
- The paper studies a problem of modelling the early growth of ductal carinoma in situ of the breast (DCIS).This model has decoupled parabolic equations and hyperbolic equations. 摘要研究了乳腺癌的早期生长模型(DCIS),它为耦合了抛物方程、椭圆方程的自由边界问题。
- Comparison between the non-hyperbolic and hyperbolic NMO correct ion results of 3D converted waves shows that the non-hyperbolic method is better than the hyperbolic method. 三维转换波非双曲动校正和常规双曲动校正结果对比表明,非双曲方法优于双曲方法。
- I hit him fair and square on the jaw. 我不偏不倚打中他的下巴。
- Spherical and dendritic Bi nanocrystals were prepared by ultrasonic dispersion method. 用超声分散法制备了球形与树枝状铋纳米晶体;
- It is a fact of life and you must face it. 这是严酷的现实,你必须面对它。
- She and I can't live under the same roof. 她和我不能住在一起。