By constructing fixed wings instead of freely movable ones, the insight in how to fly grows.

通过建立固定不动的翅膀，而不是自由扇动的翅膀，我们知道了怎么飞行。

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His submersible designs have fixed wings and sleek, elongated fuselages, like those on an aircraft.

潜艇的设计含固定的机翼和光滑细长的机身，和飞机一样。

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Like most small planes, the Wasp gets lift from fixed wings and thrust from a propeller, which is powered by a 10w electric motor.

像大多数小飞机一样，黄蜂无人机通过固定的翅膀获得上升力，并通过螺旋桨获得推动力，螺旋桨的动力来自一个10w的电动马达。

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Unfortunately, because they lack fixed wings to help provide lift, they are also expensive to operate.

ECONOMIST: Monitor

The simplest option is to scale down the existing standard of a fuselage with two fixed wings and a tail.

ECONOMIST: A personal eye in the sky

Rather than use fixed turbines to generate power, Makani has been experimenting with "flying wings" adorned with several smaller turbines that act as propellers as the craft takes off.

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