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释义 金属元素,符号Hf(hafnium)。银白色,熔点高。用于制高强度高温合金,也用作X射线管的阴极,在核反应堆中做中子吸收剂。{hafnium (Hf); silvery metallic element with a high melting point, used to make high-strength alloy, as negative poles in an X-ray tube, or as neutron absorbent in nuclear reactors}
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