Ua ntej, yog tias qhov ntsuas ntawm qhov khawb "kev puas tsuaj" tsis loj, nws tuaj yeem kho tau raws li cov txheej txheem kho xim ib txwm ua kom rov zoo li qub.
Qhov thib ob, yog tias qhov "scratch" loj, thiab txawm tawg, poob, thiab lwm yam, koj tuaj yeem kho thiab kho los ntawm cov yas vuam lossis hlau vuam lossis cov cuab yeej tshwj xeeb vuam xws li cov khoom siv FRP (saib cov khoom siv hauv ntej) kom rov qab los. lub xeev qub. Tom qab ntawd ua raws li cov txheej txheem kho xim ib txwm ua kom ua tiav qhov zoo li qub.
Thib peb, yog tias qhov ntsuas ntawm qhov khawb txuas nrog rau lwm qhov chaw, xws li cov teeb, ua rau cov khoom cuam tshuam los yog teeb, pob txha,bumpernws tus kheej thiab lwm qhov chaw ntawm kev hloov pauv, qhov xav tau rau kev tsom xam tshwj xeeb.
Plaub, zoo li qhov khawb "kev huam yuaj", lub khw pib dav dav nruab nrog cov cuab yeej tshwj xeeb tuaj yeem kho, tus tswv tsis tas yuav txhawj xeeb, Tsuas yog ua tib zoo saib seb qhov kev tshem tawm ntawm txhua yam hauv "kev sib tsoo" yog qhov tsim nyog thiab ib txwm, thiab seb cov khoom siv hluav taws xob uas muaj kev nyab xeeb xws li "kev sib tsoo sensor" (SRS pem hauv ntej sensor feem ntau nyob ze ntawm lub hauv ntej bar) tsis hloov, poob, xoob, thiab lwm yam., ua tib zoo xyuas kom paub tseeb tias nws yog qhov tseeb ua ntej tsav tsheb ntawm txoj kev.