General Purpose Simulation System通用模拟系统 General-Purpose System Simulator通用系统模拟程序(仿真程序) Global Positioning Satellite System全球卫星定位系统 Ground Processing Scheduling System地面处理调度系统 General Purpose System Simulator通用系统模拟程序 Group Process Support Systems团队工作程序支持系统 Graduate and Professional Student Senate毕业生及专业的学生 Guam Public School System (Guam)关岛公立学校系统(关岛) Grant Per Subscriber Station格兰特每站 General Purpose Simulation Software通用仿真软件