单词 | delta iron |
释义 | delta iron (extremely rare) n WORD FAMILY delta iron n an allotrope of iron that is stable between 1403 degrees centigrade and the melting point (= 1532 degrees) Hyper Fe, atomic number 26, iron a heavy ductile magnetic metallic element; is silver-white in pure form but readily rusts; used in construction and tools and armament; plays a role in the transport of oxygen by the blood |
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