单词 | chromium |
释义 | chromium音标['kr?umi?m]汉语翻译n. 铬【化】 铬Cr 【医】 铬(24号元素) 词型变化:简写符号:Cr英语解释:名词 chromium:
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详细解释:chro.mi.um n.Symbol Cr (名词)符号 Cr A lustrous, hard, steel-gray metallic element, resistant to tarnish and corrosion and found primarily in chromite. It is used as a catalyst, to harden steel alloys and produce stainless steels, in corrosion-resistant decorative platings, and as a pigment in glass. Atomic number 24; atomic weight 5.99'; melting point ,890=C; boiling point 2,482=C; specific gravity 7.8; valence 2, 3, '.See table at element 铬:一种有光泽的、蓝灰色的坚硬金属元素。不失光泽,抗腐蚀,最早在铬铁矿中发现。用作催化剂,可加强钢合金的强度和生产不锈钢,可以做防腐镀层和玻璃制品中的颜料。原子序数24;原子量5.99';熔点,890=C;沸点2,482=C;比重7.8;化合价2,3,'参见 element 来源:From French chrome * see chrome 源自 法语 chrome *参见 chrome |
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