井下人员定位系统
orientation system of the mining personnel
矿井人员定位系统
coal mine personnel position system
个人定位系统
PLAYERpersonal locator system
PLMpersonal locator system
矿井人员定位
personnel orientation system in mine
人员定位
personnel orientation
personnel location
personnel positioning
personnel localization
positioning for personnel
personal orientation
personnel location system
Personnel allocation
people’s position location
People orientation
人造卫星定位系统
GPS
Global positioning system
ANGEPS定位系统
ANGEPS positioning system
DGPS卫星复合定位系统
DGPS satellite compound navigation positioning system
GPS车载定位系统
vehicle positioning system of GPS