dihedral /dai'hi:drәl/ 📖 中文释义 a. (数)二面的n. 两面角 🧩 词形变化 复数 dihedrals 📘 English Definition(英文释义) a. Having two plane faces; as, the dihedral summit of acrystal. ← dihalomethylenation D 字母词表 dihedral angle →