柯林斯词典diatomic /ˌdaɪəˈtɒmɪk/ 1. ADJ containing two atoms 二原子的2. ADJ containing two characteristic groups or atoms 含兩個性質團或原子的 ethylene glycol is a diatomic alcohol 返回 diatomic剑桥词典A diatomic molecule consists of two atoms of the same type . 雙原子的（分子） The symbol for diatomic nitrogen is N2. 雙原子的氮分子符號是N2。 返回 diatomic