plumboniobite iron ore iron mine
And neon - 21 was found in josephinite by the Bern researchers.
伯尔尼的研究人员在镍铁矿中发现了氖 - 21。
—— 给力词典精选Iron ores of greatest economic interest contain magnetite and hematite.
最具有经济价值的铁矿包括磁铁矿和赤铁矿。
—— 辞典例句Iron ore has been discovered in the area.
这地区发现了铁矿。
—— 辞典例句Coal seams intermixed with iron ore.
煤层和铁矿混杂在一起。
—— 辞典例句Magnetic techniques are most suitable in the search for iron in this form.
磁法最适用于勘探这类铁矿。
—— 辞典例句