https://xn--80abla7dhnr.xn--p1ai/%d0%ba%d0%b0%d0%ba%d0%b0%d1%8f-%d0%b4%d0%be%d0%bb%d0%b6%d0%bd%d0%b0-%d0%b1%d1%8b%d1%82%d1%8c-%d0%bf%d0%bb%d0%be%d1%82%d0%bd%d0%be%d1%81%d1%82%d1%8c-%d1%82%d0%be%d1%80%d0%bc%d0%be%d0%b7%d0%bd%d1%8b/
Какая должна быть плотность тормозных цилиндров локомотива?