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Service Node Interface业务节点接口 SMS (Short Message Service) Notification Indicator简讯服务通知的指示器 Sustaining Non-major Instrumentation (project)非专业仪器(项目),维持 Showtime Networks Inc.ShowTime电视台 Sequence-Number Indicator顺序编号指示器 Sustainable National Income可持续发展的国民收入 Serviço Nacional de Informações (National Information Service, Brazil)Serviço Nacional de Informações (National Information Service, Brazil) Siemens Nixdorf Informationssysteme AG (Paderborn, Germany)西门子AG(Paderborn Nixdorf Informationssysteme,德国) SNA Network InterconnectionSNA网络互连 Soviet Naval Infantry苏联海军步兵 Subscriber Network Interface用户网络接口 Signaling Network Interface信令网络接口 Shelter Now International (German religious and humanitarian group)国际动物收容所现在宗教和人道主义团体)德国 SCC Network Interface鳞状细胞癌的网络接口 SocietÀ Numismatica Italiana (Italian Numismatic Society)SocietÀ Numismatica Italiana (Italian Numismatic Society)