Laser daim ntawv thov hauv kev kos cim hlau yog normaly siv rau kev khij cov khoom lag luam nrog cov cim nta thiab cov cim. Cov ntawv thov no tuaj yeem pom hauv cov khoom siv hluav taws xob thiab hluav taws xob, kev tsim kho tshuab thiab kev tsim khoom siv, hauv cov hlau ua hlau, kev kho mob thev naus laus zis, cov ntaub ntawv tshaj tawm, cov hniav nyiaj hniav kub thiab hauv kev lag luam tsheb.
Lub sij hawm tshaj tawm: Mar-15-2021