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镧
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镧lanthanum 【医】 La lanthanum 镧(1)鑭lán(2)一种银白色的柔软而有展性的三价金属元素,在潮湿空气中迅速失去光泽,生成无色化合物,它存在于稀土矿中,通常把它归在稀土族内,是混合稀土的一种主要成分 [lanthanum]――元素符号La
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更新时间:2025/3/14 5:43:50