传感器可以分析材料的表面，利用其会产生的阻力来决定自己所用力道。

Sensors can analyse the surface of materials and, using the amount of resistance they show, work out the force to apply to an object.

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它们拥有很有趣的特点，例如导热性差(可以做很好的隔热材料)，以及低阻力(意味着表面很滑)。

They often have interesting properties, such as poor heat conductivity (which makes them good insulators) and low friction (which makes them slippery).

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