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单词 褐铁矿
释义 〔limonite〕Any of a group of widely occurring yellowish-brown to black iron oxide minerals, essentially FeO(OH)·n H 2O, used as a minor ore of iron. 褐铁矿:大量出现的黄褐色至黑色的氯化铁矿群中的一种,主要成分为FeO(OH)·n H 2O,作铁矿藏开采 〔iron〕Symbol Fe A silvery-white, lustrous, malleable, ductile, magnetic or magnetizable, metallic element occurring abundantly in combined forms, notably in hematite, limonite, magnetite, and taconite, and used alloyed in a wide range of important structural materials. Atomic number 26; atomic weight 55.847; melting point 1,535°C; boiling point 2,750°C; specific gravity 7.874 (at 20°C); valence 2, 3, 4, 6. See table at element 符号 Fe 铁:一种银白色的、有光泽、有韧性、可延展,有磁性或可被磁化的金属,以化合物形式大量存在,主要有赤铁矿、褐铁矿、磁铁矿和角岩,在许多种重要结构材料中用作合金的一种。原子序数26;原子量55.847;熔点1,535°C;沸点2,750°C;比重7.874(在20°C时);化合物2,3,4,6 参见 element
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