电工电子用英语可以说作 "electrical and electronics engineering"。
"electrical" 来源于拉丁语 "electricus"，意思是 "有关电的"。"electronics" 来源于希腊语 "electron"，意思是 "电子"。
例句：
"He studied electrical and electronics engineering in college." (他在大学里学习了电工电子工程。)
"The company speciapzes in the manufacture of electronic components for the automotive industry." (公司专门生产汽车工业用电子元器件。)
"I'm working on a project that involves the integration of electrical and electronic systems in buildings." (我正在做一个项目，涉及建筑物中电气和电子系统的集成。)