access subsystem

acquisition tracking subsystem

adaptive subsystem

address display subsystem

Agro-meteorological disasters analysis subsystem

analog computer subsystem

Argon production subsystem

Argon recovery subsystem

back load operation computer subsystem

backbone subsystem

Building Intelligentized Subsystem

building subsystem

command clock subsystem

Communication Subsystem

compiler subsystem

Cropping subsystem

data multiplex subsystem

data processing subsystem

data transmission subsystem

demodulation and terminal subsystem