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Sisitemu Yisubiramo Sisitemu
Ikigaragara mu gutunganya ibiribwa ni ukwimuka ukava mu mato mato agasubira mu bishishwa binini kugirango tunoze imikorere n'umutekano w'ibicuruzwa. Amato manini yerekana ibitebo binini bidashobora gukoreshwa nintoki. Ibitebo binini ni binini cyane kandi biremereye kuburyo umuntu umwe ashobora kugenda.