英语词汇“roentgenium”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典

单词	roentgenium
释义	roent·gen·i·um (rĕnt-gĕnē-əm, -jĕn- rŭnt-, rœnt-gen-) n. Symbol Rg An artificially produced radioactive element with atomic number 111 that has only been produced in trace amounts. Its most stable known isotope has a mass number of 280 and a half-life of 3.6 seconds. See Periodic Table. [After Wilhelm Conrad Roentgen.]
随便看	twinflower twinge twinight diluvian dim dim. DiMaggio dime dime bag dimenhydrinate dime novel dime novelist dimension dimensional dimensionality dimensionally dimensionless dimensionless number dimer dimercaprol dimeric dimerous dimery dime store dimeter

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