システム理論 でした
shisutemurirondeshita
1. System theory was.
Noun
#285018
1. System theory was.
1. system
1. pupil; disciple
1. theory
1. automatic lock
2. automatic door-locking system
1. becoming a pupil (of); becoming an apprentice
1. systems
1. geographic information system; GIS
1. deci-; 10^-1
1. filing system