semiconductor

In semiconductor receivers transistors take the place of vacuum tubes.

在半导体收音机中晶体管代替了真空管。

What was happening was this: in its pure state of repeating units of one titanium and two oxygen atoms, titanium dioxide is a semiconductor.

发生的事是这样的：在纯净的一个钛和两个氧原子组成的重复单位下，二氧化钛是一种半导体。

They can then be printed onto a roll of metal foil that becomes a continuous semiconductor.

然后他们可以把这种墨水印刷在一卷金属箔上，从而制成连续的半导体。