Search Engine Optimization搜索引擎优化 Science and Education Outreach科学和教育的延伸 Search Engine Optimizer搜索引擎优化 Satellite for Earth Observation地球观测卫星 Sociedad Española de OrnitologÍa (Spanish bird society)Sociedad Española de OrnitologÍa (Spanish bird society) State Engineers Office国家的工程师办公室 Senior Executive Officer资深执行官 Survivability Enhancement Options生存性增强选项 Seasoned Equity Offering经验丰富的股权 Sauf Erreur Ou Omission (French: error or omission excepted)Sauf欧遗漏(法国遭遇错误或遗漏除外) Synthetic Engine Oil合成的机油 Security Engineering Officer安全工程的警官 Special Equipment Operator特殊设备的操作 Software Executive Official软件行政官员 Source Election Official选举官员的源泉