Sikuli polo, o se tasi o le faavasegaina o bearings meafaigaluega masini, o se mea lelei masini meafaigaluega tauaveina oloa e mafai ona liua motion rotary i linear motion. Ball sikulima e aofia ai sikulima, nati, reversing masini ma polo, ma o loo i ai uiga o le maualuga. sa'o, fa'afoliga ma...
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