Many classical violinists and pianists become conductors in their middle years.

许多古典小提琴手和钢琴演奏者在中年时变成指挥家。

Conductors are placed in these slots.

导体就放置在这些槽里。

We refer to copper and silver as good conductors.

我们认为铜和银是良导体。

Nanofluids are better conductors than the sum of their parts.

纳米流体是比其组成元素各部分总和更佳的良导体。

They are to regular conductors what a laser beam is to a light bulb.

相比起来，超导体之于常规导体，就像一束激光之于一个灯泡。