单词 | cadmium |
释义 | cadmium [`kad·mē·ǝm] CHEMISTRY A chemical element, symbol Cd, atomic number 48, atomic weight 112.40. METALLURGY A tin-white, malleable, ductile metal capable of high polish; principal use is in the plating of iron and steel, and to a much less extent of copper, brass, and other alloys, to protect them from corrosion and improve solderability and surface conductivity, and as a control absorber and shield in nuclear reactors. |
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