(2) Kev xav tau
③ Daim ntawv saum npoo yog muag heev
Thaum luam ntawv khob khob, nws yuav tsum tau tswj qhov roughness ntawm lub tshuab luam ntawv ntawm lub hauv paus ntawv los yog saum npoo yuav tsum tau luam tawm tom qab PE txheej kom tau raws li qhov yuav tsum tau luam ntawv ntawm daim ntawv khob nto.
④ Siab dawb
Ntawm qhov chaw tsis siv cov tshuaj fluorescent, cov ntawv hauv paus muaj qhov sib npaug ntawm daim ntawv dawb CTP kom paub meej thiab ci ntsa iab.
⑤ Kev ruaj ntseg siab
Cov khob ntawv yog cov khoom ntim khoom noj thiab yuav tsum ua raws li cov qauv kev nyiam huv. Daim ntawv khob lub hauv paus ntawv thiab daim ntawv khob ntawv yuav tsum tsis tu ncua xa mus rau lub teb chaws kev noj qab haus huv thiab kev tiv thaiv kab mob sib kis rau kev kuaj kev nyab xeeb kom ntseeg tau tias muaj kev nyab xeeb ntawm cov neeg siv.