Tetrahedron
[,tetrə'hiːdrən;-'hed-] or [,tɛtrə'hidrən]
解釋/意思:
(n.) A solid figure inclosed or bounded by four triangles.
手打:帕特丽夏
解釋/意思:
n. a solid figure enclosed by four bases or triangles.—adjs. Tetrahē′dral having four sides: bounded by four triangles; Tetrahexahē′dral.—n. Tetrahex′ahēdron a solid of twenty-four triangular faces.
手打:丽塔