Read Edit View history 矿层 kuàngcéng stratum Origin Definitions Defs Strokes Stroke Words Sentences Sents created sense approved 矿层/礦層 · kuàngcéng · stratum 2026/03/04 矿层 / 礦層 kuàngcéng stratum a layer or vein of mineral ore 地质学家正在研究这个新发现的矿层。 noun created sense Mar 4, 2026, 02:25 AM