例句 /

EARLY ORDOVICIAN GRAPTOLITE ZONATION OF THE LOWER MEMBER OF THE MEITAN FORMATION,WUDANG AREA OF GUIYANG,GUIZHOU PROVINCE,CHINA

EARLY ORDOVICIAN GRAPTOLITE ZONATION OF THE LOWER MEMBER OF THE MEITAN FORMATION,WUDANG AREA OF GUIYANG,GUIZHOU PROVINCE,CHINA

贵阳乌当奥陶系湄潭组下段笔石带的划分