Students for the Exploration and Development of Space学生的勘探和开发空间 Space Electronics Design Standards空间的设计准则。电子有限公司 System Engineering Development Specification系统工程开发的规格 State Energy Data System国家能源数据系统 Small Expendable Deployer System小消耗品”系统 Society for Educational Data Systems社会对教育数据系统 Sensor Evolutionary Development Program (Defense Support Program satellite)传感器的发展计划(防御支持进化程序卫星) Statistical Exception Detection System统计异常检测系统 Solution Enhanced Dispersion of Supercritical Fluids增强的色散超临界流体解决方案 System Engineering Detailed Schedule系统工程详细时间表 System Effectiveness Data System系统效能数据系统 SC4 Enhancement and Discrepancy SystemSC4增强和异议制度 Standard Enhancement and Discrepancy System水平的提高和异议制度