n.电子学；电子器件
My son has been doing electronics at Princeton. 我儿子一直在普林斯顿大学攻读电子学。
A few years ago, it would have needed a shoe-box of electronics to drive it, and it would still have been hit-or-miss. 几年前，它还需要鞋盒那么大的电子器件来驱动，而且还经常搞错。
n.微电子学
n.光电子学
