Rau cov khw muag khoom, khw muag khoom noj khoom haus thiab lwm qhov chaw tshwj xeeb, kev teeb tsa ntawm cov txee feem ntau hloov pauv, cov teeb pom kev zoo tsim nyog yuav tsum tsis yog lub teeb siv xwb, tab sis hloov pauv lub teeb yog qhov tseem ceeb dua.TAK ALYCE zoo kawg nkaus ua tau raws li cov kev xav tau no los ntawm kev tsim qauv zoo tshaj plaws ntawm photoelectr ...