length of service of episode
A Conceptual model of Service Quality
accepts service of the writ
administrative system of service trade
advisory service of standard information
After-sale Service of Medicines
allocation factor of service track
application-layer quality of service(QoS)
Appraisement of Service Quality
attribute of service justice
average grade of service
be taken out of service
BIOSIS Biosciences Information Service of Biological Abstracts
Break of Service， Out-of-Service