| 释义 |
covalent/kəʊˈveil(ə)nt/adj. Chem. relating to, designating, or characterized by chemical bonds formed by the sharing of electrons, usu. in pairs, by two atoms in a molecule 【化】共价键的 □ covalence n.□ covalently adv.[CO- + valent, on the pattern of trivalent etc.] |