What is the resistance symbol There is a frame in the middle. There is a horizontal line at the top and a horizontal line at the bottom, In the middle of a box, there is a horizontal line at the top of the left corner, and there is also a horizontal line at the bottom of the right corner. A diagonal line in the middle connects two horizontal lines. If you can explain it in detail, the more the better, there will be extra points

What is the resistance symbol There is a frame in the middle. There is a horizontal line at the top and a horizontal line at the bottom, In the middle of a box, there is a horizontal line at the top of the left corner, and there is also a horizontal line at the bottom of the right corner. A diagonal line in the middle connects two horizontal lines. If you can explain it in detail, the more the better, there will be extra points

Zinc oxide resistor for energy absorbing and arc extinguishing