Kho lub ntsej muag
Feem ntau ntawm kuv cov neeg siv khoom feem ntau saib xyuas qhov tseem ceeb ntawm kev hloov pauv tsis tu ncua thiab kho lawv cov txhuam txhuam, uas tuaj yeem cuam tshuam cov hniav lub neej. Kev tso kawm kom raug yuav tsum tau hais tias koj tsuas yog npog thawj ob peb millimeters ntawm tus hniav. Nws yog ib qho tseem ceeb kom tshem tawm cov txhuam hniav thaum nws tau ploj tag nrho "caij nplooj ntoos hlav" hauv nws cov bristles. Yog hais tias tus txhuam hniav nyob deb dhau mus rau sab hauv, nws yuav ua rau hnav ntau dhau ntawm koj cov hniav thiab misalignment ntawm cov hniav. Tsis tas li ntawd, yog tias cov txhuam hniav tsis ua haujlwm zoo, koj yuav raug txiav cov chips (cov khoom ntawm cov hlau) thiab muaj feem cuam tshuam rau cov khoom tsim.
Yuav kom ua tau ncaj ncees, tso ib lub txhuam txhuam xav tau me ntsis ntxiv finesse dua li txuas hniav; Txawm li cas los xij, thaum ua kom raug, nws kawg txo cov hniav hloov tag nrho. Lub sijhawm ua haujlwm nce siab txhais tau tias muaj txiaj ntsig ntau dua rau txhua tus neeg koom nrog.
