皮肤伸展器是利用皮肤弹性，采用持续增量牵引设计而成。

A skin-stretching device that is designed to harness the elastic properties of the skin using incremental traction is presented.

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在生物相容的装置中嵌入一个内部信息处理器，然后几个这样的装置将被包合进容纳有电线的高分子材料中，这些电线伸展时可达1.22毫米。

An internal processor is inserted in a biocompatible device, then a few of these devices are sewn up together into a polymer containing electronic wires that stretches a short 1.22 mm across.

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音爆的横向伸展取决于高度、速度和大气，而跟飞行器的形状、大小和重量无关。

The lateral spreading of the sonic boom depends only upon altitude, speed and the atmosphere -- and is independent of the vehicle's shape, size, and weight.

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