Read Edit View history 贫矿 pínkuàng low-grade ore Origin Definitions Defs Strokes Stroke Words Sentences Sents created sense approved 贫矿/貧礦 · pínkuàng · low-grade ore 2026/03/04 贫矿 / 貧礦 pínkuàng low-grade ore low grade ore 开采贫矿需要更先进的技术。 created sense Mar 4, 2026, 02:25 AM