- differential global positioning system dgps
- 差: send on an errand; dispatch
- 位: place; location
- 全球: the whole world
- 定位系统: position system; fixer syste ...
- 全球定位系统: g , global positioning system; g ， global position system; global position system, gps; global positioning system (g ); global positioning system-gps; globalpositioningsystem; gnss world of china; gps global position system; gps global positioning system; gps：global positioning system; hb global positioning system
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