还可以延展成比头发丝还细的电线，却同时具有极好的导电性能。
Gold can be stretched into wires thinner than a human hair, yet those wires still conduct electricity beautifully.
这个传感器由不到半厘米厚的硅片构成，上面排列有100个比头发丝还细的金质电极。
This sensor consists of a piece of silicon less than half a centimetre across, fitted with an array of 100 gold electrodes each thinner than a human hair.
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