Kev soj ntsuam nrug ntawm ...
Hauv kev soj ntsuam kev deb ntev xws li kev tiv thaiv ntug hiav txwv lossis tiv thaiv UAV, peb feem ntau ntsib cov teeb meem xws li: yog tias peb yuav tsum ntes UAVs, neeg, tsheb thiab nkoj ntawm 3 km, 10 km lossis 20 km, dab tsi ...
nyeem ntxiv