Ikirangantego ni igikoresho cyo gupima neza gikoreshwa cyane mubukanishi, ubwubatsi, ninganda zikora kugirango bapime diameter yo hanze, diameter y'imbere, ubujyakuzimu, n'uburebure bwintambwe yibintu. Igizwe numubiri munini ufite impamyabumenyi, urwasaya ruhamye, urwasaya rwimuka, hamwe na terefone. Hano hari muri ...
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