与电线四周围的橡胶绝缘层相类似，髓鞘环绕着发送信息的轴突，保护和加快着电脉冲。
Like rubber insulation around electrical wires, myelin wraps around message-sending axons, protecting and speeding electrical impulses.
最理想的是它能在溶剂里溶解成为绝缘漆，但又能像橡胶那样具有可塑性。
Ideally it would be some-thing that would dissolve in solvents to make insulating varnishes and yet be as moldable as rubber.
人们发现橡胶是一种用于绝缘光缆的理想材料。
Rubber is found a good material for the insulation of cable.
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