Perchinlangan barcha perchinlar perchinlangandan keyin ikkala tomoni ham tekis bo'lishi mumkinmi?

Ikkala tomonni ham tekislash effektiga erishish mumkin. Bo'shatilgan perchinlar perchinlash tugagandan so'ng, tirnoq boshi tushib ketmasligi va mahsulotning ikkita perchinlash yuzasi nisbatan tekis bo'lishi bilan ajralib turadi.

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