1 550 nm fiber-optic ring network

500 kV main ring network

bus-ring

fiber ring network

redundance ring network

Ring network

ring-ring-section

Bus network

Bus Network of PrincipleandSubordinateConstruction

CAN bus network

Controller Area Network bus

local interconnect network bus

voltage drop of electric network bus

the Western Ring Road Sector of Central Ring Road

Bus stop without bus bay

Drug supervision network and drug supply network

network Embryonic communication network

self-organizing mapping network SOM network

(piston) ring

(semi-)prime ring