Kev kho mob handheld PDA, tseem hu ua RFID cov ntaub ntawv kho mob cov ntaub ntawv khaws cia, yog cov ntaub ntawv khaws cia, khaws cia, thiab kis tau tus mob tshwj xeeb uas tsim los rau kev tswj hwm kev noj qab haus huv, kev kho mob mobile, thiab lub rooj sib tham txawb.Lub handheld PDA yog me me thiab yooj yim rau nqa.Thiab nws yog ...
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