... rare-metal couple 稀有金属温差电偶 ; 贵金属热电偶 rare refractory metal 金属 rare earth metal deposit 稀土金属矿床 ...
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Molybdenum is the rare metal with high melting point, which is often used to prepare alloy steel, refractory steel and stainless steel.
钼是一种宝贵的稀有高熔点金属,是生产合金刚、不锈钢、耐热钢和合金铸铁的重要合金化元素。
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