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难熔金属
释义
难熔金属
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工学
难熔金属
释
refractory metals
难熔金属
熔点高于2400℃的钨(W)、钽(Ta)、钼(Mo)、铌(Nb)、铼(Re)等金属的总称。以难熔金属为基体,添加其他元素的合金称为难熔合金,其使用温度在1200℃以上。
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law of logic
law of marine resources
law of mass action
law of mass conservation
Law of Military Ranks of Song Dynasty
law of motion
law of multiple proportions
law of multiplication
law of nations
law of nature
law of negating
law of negating a conjunction
law of negating a disjunction
law of negating an equivalence
law of negating an implication
law of neutrality
law of parity conservation
law of partial pressure
law of partial volume
law of partial volume of mixed perfect gas
law of personality
law of planetary distances
law of planned and proportional development of national economy
law of planned proportional development
law of prize
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