Nrog txoj kev loj hlob sai ntawm kev sau ntawv tsis siv neeg, cov khw muag khoom hluav taws xob tau maj mam nkag siab. Cov khw muag khoom noj khoom haus thiab cov khw muag khoom yooj yim hauv txoj kev thiab txoj hauv kev tau pib siv cov txheej txheem sau nyiaj ntsuab los pab txhawb lawv txoj kev tswj hwm thiab kev tswj hwm. Raws li ib qho ntawm cov khoom tsim nyog ntawm cov ntawv sau nyiaj ntsuab, POS cov tshuab luam ntawv yuav tsum tau ua kom ruaj khov, hloov tau yooj yim ntawm daim ntawv, thiab tuaj yeem hloov mus rau qhov chaw nyuaj.
Raws li cov khw muag khoom thiab lub khw muag khoom xav tau, SPRT tau tsim cov qauv sib txawv ntawm lub tshuab luam ntawv los ua kom tau raws li cov neeg siv khoom sib txawv thiab cov ntawv thov.
Cov qauv pom zoo: P-POS88V, SP-TL21N, SP-POS890, Y33.
