improper rotation axis造句

例句与造句

1. While the presence of any symmetry element within a ligand intended for asymmetric induction might appear counterintuitive, asymmetric induction only requires that the ligand be improper rotation axis ); it does not have to be asymmetric ( i . e . devoid of any symmetry element ).
2. It's difficult to find improper rotation axis in a sentence. 用improper rotation axis造句挺难的