เข้าใช้งาน U31
??????? ??????? ???? U31? ??????? ?????????????? ?????? ????? ?????? ????? ?????????? ??? ??????? ???? ??????? ???????? ?????? ???????? ??? ????????????? ???? ?????? “Submit”
???????????? U31 /
????? ????????? ????? ???????? U31, ????? ???? ID ??? ???????? ???????. {??????????/ ????? ??? ???????