bipyramid / baɪˈpɪr ə mɪd /

📖毕业后词汇双锥体双金字塔双子塔双子座

bipyramid 的定义

n. 名词 noun

Crystallography.

  1. a form symmetrical about a plane dividing it into two pyramids.

更多bipyramid例句

  1. Hexagonal bipyramid (fig. 70), bounded by twelve isosceles triangles each of which are equally inclined to two planes of symmetry.
  2. The general form is bounded by twelve scalene triangles and is a ditrigonal bipyramid.
  3. It may be considered as the hemihedral form of the ditetragonal bipyramid.