link service access point
multi-service link layer
fair service curve link sharing model
link layer relay service
Self-service service terminal
single-plane (through-plane service) service
Break of Service， Out-of-Service
free medical service; free medicare; public health service
in service and out of service
overland common point service {= OCP service}
search and rescue service {= SAR service}
service oriented architecture service
Value Added Service (VAS)New Service
close-link chain [= short-link chain]
direct current link DC-Link
direct current link(DC-Link)