几乎所有金属都是良导体，以银为最好。
Almost all metals are good conductors, with silver being the best.
目的：以银浸染法显示神经组织培养中的变性纤维。
Objective: To show degenerated fibers in nerve tissues culture by silver impregnation method.
一般说来，金属都是良导体，其中以银为最好，铜次之。
In general, all the metals are good conductors, with silver the best and copper the second.
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