They can be translated into a clear and comprehensive set of engineering questions, similar in a way to those used in the design of a bridge or a plane.

它们可以被翻译成一个清晰和全面的工程问题集合，与在桥梁或飞机设计中使用的方法类似。

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In addition, the plane of the blades is parallel to the pole. This is called an upwind design.

另外，叶片轮的平面平行于极轴，这被称作是逆风设计。

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In an undated picture, a mock-up of the A-12 spy plane sits perched upside down on a testing pylon at Area 51-part of radar tests to reveal revealed how visible, or invisible, the design was to radar.

在一张未标明日期的图片中，一架实物模型的A - 12间谍飞机倒挂着停放在51区的一个测试塔上，这是为了测试该飞机的外观在雷达上可视或不可视的程度。

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The lithium-ion batteries used in Boeing's 787 Dreamliner are central to the design of a plane which is billed as being lighter and 20% more fuel efficient than earlier generations of jet.

BBC: Boeing 787: Dreamliner's lithium ion batteries probed

So far, the regulator has discovered that the Boston fire was caused by a short circuit within one of the cells of the plane's multi-cellular batteries, and that a fault in the battery's design allowed the resulting overheating to spread to the other cells.

BBC: Boeing 787 Dreamliner tests 'missed fire risk'

Also in design: the Fozzie, a concept plane by Boeing Phantom Works.

FORBES: The World's Biggest Planes