例句 /

The gabbro inQipanyan pluton has a Nb/U=. which is close to the primitive mantle (Nb/U= 0).

The gabbro inQipanyan pluton has a Nb/U=. which is close to the primitive mantle (Nb/U= 0).

棋盘岩辉长岩Nb/U=.,与原始地幔(Nb/U= 0)接近。