Re..................
tui cung dang rat thich lam mot cai gi do ve RF
vi du nhu remote control chang han
noi chung la cho toi lam co nhieu thu co the ap dung RF dc lam
nhung mu tit, chang biet chi ca, vo may trang do thi thay cungnan qua vi
anh ngu cung co han
bac co tai lieu hay king nghiem gi thi cho tui thinh giao voi
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