SIOS
| Acronym | Definition |
|---|---|
| SIOS | Status Indication Out of Service (SS7) |
| SIOS | Society for Indian Ocean Studies (est. 1987) |
| SIOS | Servizio Informazioni Operativo e Situazione (Italian defense secret service; one for each Italian military service) |
| 单词 | SIOS | ||||||||
| 释义 | SIOS
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