Social Security Disability Insurance社会保障残疾保险金 Social Security Death Index社会保障死亡的索引 Supplemental Security Disability Income辅助安全残疾的收入 Social Security Disability Income (common, but incorrect)社会保障残疾的收入(常见,但不正确的) Ship System Definition & Index系统的定义和索引。船 Standardized Systems Database Interface标准化体系数据库接口