Cov yam ntxwv ntawm lub thawv wascher feem ntau suav nrog kev ntxuav huv, kev tiv thaiv hluav taws xob thiab kev ua haujlwm ib puag ncig, kev ruaj khov zoo thiab lwm yam.
Kev tu tau zoo: Lub npov npov npaj ua kom muaj zog thiab txhuam cov dej ntws, cov khoom seem thiab cov ntxhiab tsw zoo nkauj thiab cov ntxhiab tsw zoo ntawm cov npias ntim. Kev tiv thaiv hluav taws xob thiab kev tiv thaiv ib puag ncig: Cov ntaub ntawv siv hluav taws xob ua kom muaj zog thiab ua kom muaj kev tsim tawm ntawm kev tiv thaiv kev tiv thaiv. Kev lag luam yooj yim: cov khoom siv tau yooj yim rau cov tsim, yooj yim thiab ua haujlwm yooj yim rau kev ua haujlwm, thiab txo cov nqi kev ua haujlwm thiab cov nqi cob qhia ua haujlwm. Cov qauv zoo: Cov khoom siv muaj cov qauv kev ua haujlwm tau muaj txiaj ntsig, tuaj yeem ua haujlwm tsis tu ncua ntev, thiab txo tus nqi tsis ua haujlwm thiab tus nqi tswj xyuas. Tsis tas li ntawd, cov ntawv thov tshwj xeeb ntawm lub thawv washer tseem muaj kev lag luam ntau, tab sis kuj haum rau lwm cov kev lag luam uas yuav tsum tau ntxuav lub thawv, xws li dej haus, khoom noj, thiab lwm yam.
