北京敏视达雷达公司
Beijing METSTAR Radar Company
导航雷达
navar
marine navigation radar
pathfinder
navigation radar
pathfinders
biological value of protein
NR Navigational Radar
地面警戒雷达
ground early warning radar
防空警戒雷达
air warning radar
Awr
air-defense warning radar
1-Diphenyl-2-picryihydrazyl