Inside are tiny "springs" made of carbon nanotubes - minuscule hair-like filaments - that can "sense" pressure from a slight pinch up to the equivalent of two elephants stepping on top of the sensor.

传感器内部是由碳纳米管制成的微型“弹簧”——非常细小，像头发丝一样——能够感知不同的压力，小到轻轻地捏一下，大到相当于两头大象站在顶上。

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