Igifuniko cya manhole yubwenge nicyuma kidahinduka nkibikoresho fatizo byigifuniko cya manhole, ntabwo ari urusaku no kunyeganyega gusa, ariko kandi bifite imikorere yo gutabaza byikora, ntibikiri "gushaka kwimuka birashobora kugenda", igifuniko cyubwenge gifite tagi ya elegitoronike hepfo, .. .
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