??? ?????? ????? ??? ??? ??? ?????? ?? ???????? ???????? ???????? ???? ???????? ??? ??? ???????? ???????? ?? ???? ??? ????? ??? ?? "???" ?????? ??????? ?? ???? ????? ??? ??? ??????? ??? ?? ???? ???????.?? ????? ???? ??????? ???????? ???????? ???????? ????????????? ??????? ?????? ???? ??? ?????? ?????? ?????? ??? ?? ??? ????????.????? ????? ???????

???? ?????? ????????? ?????? ??? ???? ??????? ?? ??????? ???????? ?? ????? ???????.?? ?????? ????? ?????? ??? ?? "?????? ???????" ??????? ?? ????? ??? ?? "???" ?????? ???? ??? ????? ??? ?????????.????? ???? ??????? ?????? ??? ?????? ?????? ?????? ?????. ???? ????? ??????? ?? ??? ??????.???? ??? ???????? ???????? ??????? ????? ??? ?????? ???? ???? ?

T? th? x?u, ch?ng h?n nh? khom l?ng hay cong l?ng c?ng có th? khi?n ng?c b? tác ??ng b?i tr?ng l?c nhi?u h?n.Ph?u thu?t t?ng dimension ng?c s? d?ng k? thu?t t??ng t? treo sa tr?, nh?ng k?t h?p v?i vi?c ??t thêm túi ng?c ?? giúp vòng 1 ??y ??n, c?ng tròn t? nhiên h?n.Nâng ng?c Cách gi? ng?c ??p sau nâng ng?c không ph?i ai c?ng bi?tM?i ng