Kev faib tawm kis
Kis: Qhov kis tau tus mob yog siv kom muaj kev hloov ntawm lub zog, hloov, tsis nruab nrab thiab nrawm nrawm, nthuav ntau yam ntawm lub tsheb, thiab ua kom lub tsheb muaj zog dua qub thiab nyiaj txiag.
Raws li hom kev lag luam, qhov kis tau tus mob yog muab faib rau hauv phau ntawv muaj kev sib txuas thiab kev sib kis tau tus kheej tuaj.
Raws li qhov kev npaj, qhov kev sib kis tau muab faib ua ib qho kev sib tseb tawm thiab ib qho kev sib txuas ntawm lub zog (planetary).
Raws li cov nyhuv hloov, qhov kev sib kis tau muab faib ua ib qho kev sib kis ceev thiab tsis muaj kev sib kis dua.
Raws li kev hloov hom, qhov kis tau tus mob yog muab tso rau hauv kev xaib sib kis, hydraulic kis tau tus mob, thiab ib qho hluav taws xob kis.