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Kev pab txhawb nqa

Kev pab txhawb nqa

Thaum muab cov neeg siv khoom nrog cov khoom lag luam zoo, peb tau txais cov txheej txheem thoob ntiaj teb kev tswj hwm zoo kom tswj hwm cov txheej txheem kev lag luam ntawm kev tsim khoom, kev yuav khoom, muag thiab nyiaj txiag kom muaj txiaj ntsig zoo tshaj plaws.Lub tuam txhab tau ua tiav cov txheej txheem siab thiab cov khoom siv kho mob zoo nrog cov txheej txheem kev tswj hwm thoob ntiaj teb, pab pawg R & D zoo, cov cuab yeej ntsuas qib siab, thiab kev tsim khoom.

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