tetravalent 

  1. 形容詞
(化學、醫學)四價的

    
                        
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例句

                

                    
    
                                                    
  1. 
                                Otherwise tetravalent lanthanides are rare.                            
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                                Examine the poster site. is it a tetravalent contigents site?                            
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                                Tetravalent americium has also been observed in the aqueous phase.                            
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                                Another known form of solid tetravalent americium chloride is KAmF5.                            
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                                This process gives the "cis"- tetravalent 16-electron Pd(II) species.                            
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