翻译:一次对称轴 同义词1)monogyre,一次对称轴2)diad['daiæd],二次对称轴3)hexagonal axis,六次对称轴4)trigonal axis,三次对称轴5)axis of tetragohal symmetry,四次对称轴6)2-fold symmetry contact,二次轴对称接触