システム理論 だった
shisutemurirondatta
1. System theory was.
Noun
#290755
1. System theory was.
1. system
1. theory
1. automatic lock
2. automatic door-locking system
1. systems
1. geographic information system; GIS
1. filing system
1. It is not a system.; It’s not the system.
1. It wasn't a system.; It wasn't the system.
1. Is not a system.; It is not a system.