??? PD ??= ??? ?? DB
tvN ?? ???? ‘??? ??’ ??? PD? ?? ????? ?? ??? ??.
tvN ????? ‘??? 2013QR3’?? 4? “??? PD? ???? ??? ??”? ???. ‘??? ??’?? ?? ????? ???? ??? ?? ? ?.
??, ??? PD? ‘??? 2013QR3’ 66??? ???? ??? ?? ????. tvN ????? ‘??? 2013QR3’ 66?? 4? ?? 8? 50?? ????.
??? PD? ??? ?? ??? ????? “??? PD, ??? ????” “??? PD, ???? ??” “??? PD, ???? ?? ??? ????” ? ??? ??? ???.
??= ??? ?? DB
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