circuit board造句

I touched the wrong pins causing a current reversal and all of the diodes on the circuit board exploded.

As well as looking promising for 2d nanofabrication of things such as circuit boards, the system also offers precise control over depth of carving.

About a year ago I picked up a small bench-top CNC machine for making circuit boards and electronics enclosures. Configured correctly though, it can also do simple engraving.