dubnium.
/doob-nee-uhm, duhb-/US // ˈdub ni əm, ˈdʌb- //UK // (ˈdʌbnɪəm) //
曙光,曙光号,曙光乍现
Definitions
n.noun · 名词
- 1.
Chemistry, Physics.
- ›a superheavy, synthetic, radioactive element with a very short half-life. Symbol: Db; atomic number: 105.
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