Ibintu bigira uruhare runini mubipfunyika byoroshye harimo ubushyuhe, ubushuhe, amashanyarazi ahamye, coefficente de friction, inyongeramusaruro nimpinduka zikoreshwa.Ubushuhe bwumuti wumye (umwuka) bigira ingaruka zikomeye kumubare wibisigisigi bisigaye nimbeba ...
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