Ðèñ. 7. Ñõåìà ïðèòèðêè çóá÷àòûõ êîë¸ñ: 1, 2, 4 — ïðèòèðû; 3 — îáðàáàòûâàåìîå êîëåñî.
Îãëàâëåíèå