Space Vehicle Identification (GPS)空间车辆识别(GPS) System V Interface Definition系统V接口定义 Status Variable Identification状态变量标识 Small Vessel Ischemic Disease小血管局部缺血性疾病 Sunnyside Valley Irrigation District一面熟透山谷灌区 Satellite-Vehicle Identification NumberSatellite-Vehicle识别码 Subsystem Vendor Id子系统卖主身份证