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tetrahedral 音标拼音: [t,ɛtrəh'idrəl] a. 有四面的,四面体的 有四面的,四面体的 Tetrahedral \Tet`ra*he"dral\, a. [See {Tetrahedron}.]
1. Having, or composed of, four sides. [1913 Webster] 2. (Crystallog.) (a) Having the form of the regular tetrahedron. (b) Pertaining or related to a tetrahedron, or to the system of hemihedral forms to which the tetrahedron belongs. [1913 Webster] {Tetrahedral angle} (Geom.), a solid angle bounded or inclosed by four plane angles. [1913 Webster]
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