Электрификация горного производства: Учебник в 2-х томах.Т.1

Электрификация горного производства: Учебник в 2-х томах.Т.1

511 Pages · 2007 · 4.44 MB · Russian
by Пучков Л.А. & Пивняк Г.Г.
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“ You often feel tired, not because you've done too much, but because you've done too little of what sparks a light in you. ” ― Anonymous
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