Search the dictionary A Chinese word or character, or English Draw a character Search 2 entries. āiěrlǎnggēngānglǐng 埃尔朗根纲领 Felix Klein's Erlangen program (1872) on geometry and group theory āiěrlǎnggēngānglǐng 埃爾朗根綱領 Felix Klein's Erlangen program (1872) on geometry and group theory