Принцип работы двигателя. 4-х тактный двигатель внутреннего сгорания (ДВС) в 3D
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![Мультфильм «На краю земли» [FULL HD]](https://sun9-78.userapi.com/Bt34bkMMjPD3vz9tFvyWtcJIg4Nvtlb31pNnTA/Z9h_sWLI50A.jpg)
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