This is a circuit board.

这位是线路板。

The circuit board fits in most standard boxes.

电路板的尺寸适合大多数标准盒子。

It normally means the circuit board without parts on it.

一般指上面没有零件的电路板。

The printed circuit board is made by Foxconn Advanced Technology.

印刷电路板由富士康领先科技制造。

This is a circuit board which was designed by myself. You can look it.

这里有我独自设计做的一块电路板，你可以看看。