Thaum nws los txog rau laser kawm tuab si lug thiab txawm cia li kawm tuab si lug cuab yeej nyob rau hauv kev, ntsuam yog cov tseem ceeb tshaj plaws tivthaiv. Lawv dab tsi txiav txim siab txhua yam rau kom zoo thiab yog aligning. Yog li ntawd yog dab tsi tshwm sim rau ntsuam thaum koj noj ib laser nyob deb ntau loj heev tshaj txhua yam hauv nruab nrab tib neeg yuav siv, and measure something far more… nyeem ntxiv »
