Peb -Khiav Hauv Tsev
Tshawb xyuas Cov Ntawv Sau Cov Khoom: Ua ntej cov khoom lag luam muaj npe uas qhia meej meej txog tus nqi sib npaug thiab ua raws li cov qauv hauv lub tebchaws ntawm nplooj ntawv ntim lossis cov khoom lag luam. Kev ceev faj nrog tsawg- nqi, cov khoom tsis muaj npe uas tsis muaj kev qhia tshwj xeeb; yog tias tsim nyog, hais kom tus neeg muag khoom muab daim ntawv tshaj tawm thib peb ntawm - tog neeg.
Tactile Test : Maj mam nias lub tswv yim ntawm cov bristles nrog lub ncoo ntawm koj tus ntiv tes xoo thiab swb rau sab. Cov bristles uas zoo nkaus li du yam tsis muaj khawb los yog stinging hnov qab txog tus qauv; ib tug ntxhib ntxhib los mos los yog pom burrs qhia tau hais tias lub rounding txheej txheem yog substandard.
Macro Observation: Siv 20x magnifying iav los yog smartphone macro lens los tshuaj xyuas cov lus qhia bristle. Cov khoom ua tau raws li cov lus qhia du, kheej kheej lossis hemispherical, qhov uas tsis yog - cov khoom ua raws li qhia tau meej, txoj cai- kaum sab xis - ntu lossis jagged burrs.
