Shwachman-Diamond Syndrome FoundationShwachman-Diamond综合症的基础 Severe Disabilities Services Fund严重的残疾维修基金 Sustainable Development and Small Farms (USDA)可持续发展和小农场(USDA) second division segregation frequency第二个分区隔离的频率 Self Diagnostic Safety Features自我诊断的安全特性 Secure Distributed Storage Facility安全的分布式存储设备 Spool Display and Search Facility四通显示和搜索工具 San Diego Skate Foundation圣地亚哥溜冰的基础 System Display and Search Facility (IBM)系统显示和搜索工具(IBM) Soquel Demonstration State ForestSoquel示范国家森林 San Diego Scholarship Foundation圣地亚哥的奖学金 single duct systems and fancoils单风管系统和fancoils Standoff Detector Staging Facility对峙检测器。分期 Swiss DanceSport Federation瑞士体育舞蹈联合会 Sand Dunes State Forest (Minnesota)国家森林的沙丘明尼苏达州