释义 |
bar·i·um AHD[bârʹē-əm, bărʹ-] D.J.[ˈbeəriːəm, ˈbær-]K.K.[ˈbɛriəm, ˈbær-]n.Symbol Ba (名词)符号 Ba - A soft, silvery-white alkaline-earth metal, used to deoxidize copper and in various alloys. Atomic number 56; atomic weight 137.34; melting point 725°C; boiling point 1,140°C; specific gravity 3.50; valence 2. See table at element 钡:一种柔软,银白色的碱土金属,用来还原铜并用于各种合金。原子序数56;原子量137.34;熔点725°C;沸点1,140°C;比重3.50;化合价2 参见 element
- bar(yta) bar(yta)
- -ium -ium
barʹic AHD[-ĭk] (形容词) |