Ilseongjeongsiui 일성정시의(日星定時儀)
RO : Ilseongjeongsiui MC : Ilsŏngjŏngsiŭi
Year : ?-?
Categories : Scholarship·Science and Technology>Natural Sciences
RT :
Ganui Jagyeongnu
Mulsigye
BT :
Jigugwahak