観測気球 (かんそくききゅう) — weather balloon, sounding balloon
観測気球
か ん そ く き きゅ う
Weather balloon, sounding balloon
Observation balloon, espionage balloon, spy balloon
Pagsubok na lobo
Panghahanap ng imahe

観測気球 (かんそくききゅう) — weather balloon, sounding balloon
