torus ['tɒrəs]

例句:

• There is spherical mass in centre of torus.
  来自SA
• A torus can be obtained from a rectangle by identifying opposite sides.
  环面可由矩形把其两对对边分别重叠起来而得到.
  
• A piece of magnetic material, usually torus - shaped, used for storage.
  一种供存储器使用的磁性材料, 其形状通常是环形曲面体.
  
• They are portions of a sphere, a torus or a cone.
  他们是一球形 、 环形或锥形的一部分.
  
• There is torus for which are characteristic two circles.
  来自SA
• There is already evidence for the "double torus".
  来自SA