Unmanned air vehicle (UAV) is one of the focuses of the development in military technique, because it can hover a long time in the very high or low altitude and meet the requirements of modern warfare to reduce or avoid casualties.
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- 無(wú)人機可以在超低空和超高空長(cháng)時(shí)間盤(pán)旋，與有人駕駛飛機相比，其活動(dòng)空間和范圍更為廣闊，并且適應現代戰爭對減少乃至避免人員傷亡的要求，近年來(lái)成為各軍事強國發(fā)展的軍事技術(shù)熱點(diǎn)之一。
