cooperative service for complex equipments
cooperative service of agricultural information
Agricultural techniques extension service system
County extension service
Federal extension service
QOSPF Quality – of – service extension for Open Shortest Path First
transportation extension service
Self-service service terminal
single-plane (through-plane service) service
cooperative and non-cooperative
extension set [= extension telephone set]
item extension and sequence extension pruning
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}