US Navy tests out new ‘Manta Ray’ drone that can stunningly hibernate on the sea floor for ‘very long periods’ — without even having to refuel – New York Post
기사내용보기 >> US Navy tests out new ‘Manta Ray’ drone that can stunningly hibernate on the sea floor for ‘very long periods’ — without even having to refuel New York Post [드론 관련 기사 보기]