知识贝壳
知识贝壳
所属栏目：矿物学专业术语
Definition:1.revolving or recurring in cycles; characterized by recurrence in cycles2.of pertaining to,or constituting a cycle or cycles3.chemistry of or pertaining to a compound that contains a closed chain or ring of atoms(contrasted with acyclic)环的huán ......（本文共 581 字 ） [阅读本文] >>