Xyoo no, cuam tshuam los ntawm kev kis tus kabmob tshiab, cov khoom siv ntawm PCB cov ntaub ntawv tsis txaus, thiab cov nqi ntawm cov khoom siv raw kuj tseem nce.PCB ntsig txog kev lag luam kuj tau cuam tshuam loj heev.Rau qhov kev vam meej ntawm qhov project, engineers yuav tsum xav txog kev xaiv ...
Nyeem ntxiv