Презентация солнечного коллектора
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![[Natalex] Маленькая солнечная батарея, 1-я часть. Презентация.](https://sun9-41.userapi.com/g6jorwNIlas_N3AaVl-oMf7k9CVICWVL1154rw/xpvaLYP-CgI.jpg)
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