| 单词 | unmanned |
| 释义 | unmanned (once / 5829 pages) adj Something that's unmanned doesn't have a driver, pilot, captain, or anyone else controlling or steering it. An unmanned space mission is launched without human passengers or crew. When a vehicle is unmanned, it's controlled from far away or by a robotic or autopilot system. Aerial vehicles like drones, surveillance planes, and spacecraft usually have cameras so that people on the ground can see what is happening nearby or beneath them. Other things are sometimes unmanned as well: "The reference desk was unmanned, so I couldn't ask my question." WORD FAMILYunman: unmanned, unmanning, unmans+/foreman: foremanship, foremen/man: foreman, maned, manful, manhood, maning, manlike, manly, manned, manning, mannish, mans, men, superman, unman/manful: manfuler, manfully, manfulness, unmanful/manhood: manhoods/manlike: manlikely, unmanlike/manliness: manlinesss/manly: manlier, manliest, manliness, unmanly/manned: undermanned/mannish: mannishly/men: mens/superman: supermen/unmanful: unmanfully/unmanly: unmanliness USAGE EXAMPLESWilliams said he is working with the state public school system to help develop a curriculum for students interested in flying and maintaining unmanned aircraft. Washington Times(Dec 25, 2016) But because RPAs are unmanned, they clash with important components of the military culture. Washington Post(Dec 21, 2016) The Federal Aviation Administration established rules for unmanned aircraft weighing less than 55 pounds and being flown for “routine nonhobbyist use.” Seattle Times(Dec 18, 2016) adj lacking a crew an unmanned satellite to Mars Syn|Ant remote-controlled pilotless lacking a pilot manned having a crew |
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