基本解释n.硅铁合金(硅钢)同根派生 英汉例句FOLD DEFORMATION SEQUENCE OF EARLY PRECAMBRIAN FERROSILICIUM LAYER OF QIANAN IRON ORE AREA IN EASTERN HEBEI 冀东迁安铁矿区早前寒武纪硅铁岩矿层褶皱变形序列