While the requests of AUV design performance are met, the objectives of minimizing gross weight and maximizing propeller power and payload length are achieved.

在满足AUV的设计性能要求的同时，实现了使得AUV总重量和推进功率最小，有效载荷段的长度最大等目标函数。

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A large disc-shaped rectifying antenna attached to the fuselage harvested the microwave energy, turning it into direct current to power an electric motor attached to the plane's propeller.

机身上的圆盘形整流天线能接收地面传输的微波能，将其转化为直流电为飞机推进器上的电动机供能。

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At the touch of a button it takes just 15 seconds for the wings to fold up automatically and the power to be re-routed from the propeller to the rear wheels.

只需按一个按钮，15秒钟的时间，翅膀就会自动地折叠起来，动力就会从螺旋桨推进器切换到后轮。

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But the power for the propeller is likely to be unconventional.

ECONOMIST: A personal eye in the sky

Nobody bats 1, 000, of course--not even the master, and many of the things Verne predicted have failed to appear, such as the movable 10-square-mile island built by a group of millionaires in Propeller Island (1895): Home to a large city, it moved around the Pacific Ocean on electric power.

FORBES: Eerily Prescient