Yuav kom ua tau raws li qhov xav tau ntau dua los ntawm cov kws tsim hluav taws xob sib txawv, tons ntawm cov software tsim thiab cov cuab yeej tshwm sim rau lawv xaiv thiab siv, qee qhov txawm tias dawb.Txawm li cas los xij, thaum koj xa koj cov ntaub ntawv tsim rau cov chaw tsim khoom thiab sib dhos PCBs, koj yuav raug hais tias nws tsis yog ...
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