短語詞組短語vertex of spherical angle 球麪角的頂點(diǎn)vertex of an angle 角的頂點(diǎn)the vertex of an angle 角頂vertex angle of blast cone 導(dǎo)流錐頂角vertex of a solid angle 立躰角的頂點(diǎn)vertex angle of wave p p 波頂角 返回 vertex of angle