埃尔朗根纲领

Felix Klein's Erlangen program (1872) on geometry and group theory

abbr. for Egypt 埃及[Ai1 ji2]

dust / dirt / angstrom / phonetic ai or e

variant of 爾|尔[er3]

thus / so / like that / you / thou

clear / bright

Erlangen (town in Bavaria)

root / basis / classifier for long slender objects, e.g. cigarettes, guitar strings / CL:條|条[tiao2] / radical (chemistry)

head rope of a fishing net / guiding principle / key link / class (taxonomy) / outline / program

program (i.e. plan of action) / guiding principle

neck / collar / to lead / to receive / classifier for clothes, mats, screens etc