Complex sentence: He served as the chancellor of the Sharif University of Technology from 1982 to 1985 and once again from 1989 to 1993 and also chancellor of Imam Khomeini International University for two years (1988-1989).
Split into simpler sentences: He served as the chancellor of the Sharif University of Technology from 1982 to 1985 and once again from 1989 to 1993. He was also chancellor of Imam Khomeini International University for two years (1988-1989).