柯林斯英汉双解大词典
dubnium /ˈdʌbnɪəm/
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1.
N a synthetic transactinide element produced in minute quantities by bombarding plutonium with high-energy neon ions. Symbol: Du; atomic no 105 杜(元素) →see hahnium
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N a synthetic transactinide element produced in minute quantities by bombarding plutonium with high-energy neon ions. Symbol: Du; atomic no 105 杜(元素) →see hahnium
应用推荐