angle， dihedral上: upper; up; upward反: reverse side角: role; part; character上反角: anhedral angle; dihedral of angle; lateral dihedral angle; positive dihedral; upward dihedral二面角: angle, dihedral; dihedral angle; interfacial angle下載手機(jī)詞典可隨時(shí)隨地查詞查翻譯
