“zirconium”的概念、定义、翻译、参考文献-科学参考

单词	zirconium
释义	zirconium [´zǝr`kō·nē·ǝm] ^CHEMISTRY A metallic transition element, symbol Zr, atomic number 40, atomic weight 91.22; occurs as crystals, flammable as powder; insoluble in water, soluble in hot, concentrated acids; melts at 1850°C, boils at 4377°C. ^METALLURGY A hard, lustrous, grayish metal that is strong and ductile; used in alloys, pyrotechnics, welding fluxes, and explosives.
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