基本解释钛铁矿同根派生 英汉例句Keywords Titanioferrite;Spiral;Gravity concentration equipment; 钛铁矿;螺旋选矿机;重选设备;Keywords titanioferrite;high titanium slag;smelting process;closed electric furnace;open electric furnace; 钛铁矿;高钛渣;冶炼技术;密闭炉;开口炉;