| 单词 | 铱锇矿 |
| 释义 | 〔osmium〕A bluish-white, hard metallic element, found in small amounts in osmiridium, nickel, and platinum ores. It is used as a platinum hardener and in making pen points, phonograph needles, and instrument pivots. Atomic number 76; atomic weight 190.2; melting point 3,000°C; boiling point 5,000°C; specific gravity 22.57; valence 2, 3, 4, 8. See table at element 锇：一种白色带点蓝色的硬金属元素，在铱锇矿、镍及铂的矿石中有少量储藏。用作铂的硬化剂并用于制作笔尖、唱片针和仪表枢轴。原子序数为76；原子量为190.2；熔点为3,000°C；沸点为5,000°C；比重为22.57；化合价为2，3，4，8 参见 element〔osmiridium〕A mineral that is a natural alloy of osmium and iridium with small inclusions of platinum, rhodium, and other metals, used in needles and wearing points. Also called iridosmine 铱锇矿：一种矿石，是少量铂、铑及其他金属矿石的铱锇的自然合金，用于制造针头和耐磨尖端 也作 iridosmine |
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