Собственная проводимость полупроводников
Собственная проводимость полупроводников. Физика 11 класс
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![Применение оружия сотрудниками полиции: Счастливчик [Выпуск 196 2024]](https://sun9-54.userapi.com/DQAhQKdMVJNwvRw9k1Q6dQh6YWiw-SprFZRYTg/zJb_J1TuN7Y.jpg)
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