球面

• Rolling bearings - insert bearing units boundary dimensions
  带座外球面球轴承外形尺寸
• Testing technology for aspheric wavefront aberration
  非球面波像差的检测技术
• A infinite family in the stable homotopy of spheres
  球面稳定同伦中的一个非平凡元素族
• The isospectrum problem of compact hypersurfaces on a sphere
  球面上紧超曲面的等谱问题
• Spherical plain bearings - technical specification
  球面关节轴承.技术规范
• On linear extension of isometries between the unit spheres
  单位球面间等距映射的线性延拓
• Roliing bearings - housings for insert bearing boundary dimensions
  外球面球轴承座外形尺寸
• Machining device for machining inside spherical surface in a lathe
  车床用内球面加工机具
• Extension of isometries between unit sphere
  单位球面上的等距算子的延拓
• Interchangeable spherical ground glass joints
  可互换式球面磨口玻璃接头