Iyi ni amashanyarazi mato aherereye muri Koreya y'Epfo, akoresheje sisitemu ya meden yashizwemo. Ubutaka bwatsinzwe bukoresha imirongo y'ubutaka bwashyinguwe mbere yashyinguwe cyangwa ibirundo byo gushyingirwa, gukuraho ibikenewe ku rufatiro rufatika kandi rukaba ibwubatsi bikabije, kugabanya igihe cyo kubaka no mu biciro by'ubwubatsi. Sisitemu yoroshye gushushanya kandi irashobora kwikuramo no kuyikoresha.
Igihe cya nyuma: Jun-07-2023