Electric heating and electrical, e.g., electric heating mantle, electric heating controller
“Electric heating and electrical” is a broad term that may refer to different equipment or concepts. To provide a more accurate answer, could you provide more background information?
For example, do you mean:
A specific device or instrument? Such as an electric heating mantle, electric heating controller, or some kind of electrical cabinet.
The name of a course or major? Such as “Electric Heating and Electrical Technology (I)”.
A specific technical term or model number?
Please provide more specific details, and I will do my best to help you.