Inside the Universes

=

communication_system, communication_system

~

No data.

≠

No data.

↑

system, entity

↓

intercommunication_system, telecommunication_system, radio_link, public_address_system, radio, telephone_system, ground_control

⨀

No data.

⦁

No data.

@

No data.

≫

No data.

⇅

No data.

communication_system.n.01