然而几何学告诉我们，只有二次、三次、四次和六次的旋转对称是能够存在的形式。

That is impossible. Geometry dictates that only two-, three-, four- and sixfold rotational symmetry can exist.

youdao

然而几何学告诉我们，只有二次、三次、四次和六次的旋转对称是能够存在的形式。

That is impossible. Geometry dictates that only two-, three-, four- and sixfold rotational symmetry can exist.

youdao