Ntev li cas taw muaj ntau cov maus taus saw tsav khiav

Cov maus taus sib txawv, vim tias qhov sib txawv hauv qhov zoo, siv thiab tu, qhov degree ntawm kev coj ntawm cov saw thiab sprocket log sib txawv, qhov ntsuas kom sov yuav tsum tau hloov yog qhov sib txawv, thiab cov saw hlau tsis muaj peev xwm yuav tsum muab kaw kom txog thaum qhov txwv Thaum nws ntse dua, nws xav tau hloov. Ntev npaum li cov saw tsis muaj qhov ntev tshaj plaws thiab lub sprocket tsis hnav zoo heev, tsis tas yuav hloov nws, qhov ntawd yog, Txawm hais tias nws xav tau hloov nyob ntawm kev siv tshwj xeeb.