foil gain el.

[Павел21]

Пожалуйста, помогите перевести.

Выражение встречается в следующем контексте:

The increase in surface area is referred to as foil gain and can be increased as much as 100 times for foil being used in
low voltage capacitor applications and 20 to 25 times for higher voltage applications.

Заранее спасибо