Unmanned vehicles such as spacecraft do not have any people in them and operate automatically or are controlled from a distance.
例句
...a special unmanned spacecraft.一架特別的無(wú)人駕駛飛行器...unmanned rockets.自控火箭
ADJ
無(wú)人(工作)的
If a place is unmanned, there is nobody working there.
例句
The fare from the last unmanned station is probably less than a pound...從上一個(gè)無(wú)人站過(guò)來(lái)的費(fèi)用可能還不到1鎊。Unmanned post offices meant millions of letters went unsorted.郵局無(wú)人工作意味著許多信件無(wú)人分揀。
英漢詞典釋義
adj.
(機(jī)器, 尤指航天器)無(wú)人駕駛的, 無(wú)人操縱的
Scientists say these unmanned flights can make important and exciting discoveries.科學(xué)家們說(shuō)這次無(wú)人駕駛的太空飛行能夠獲得令人興奮的重大發(fā)現(xiàn)。