bels 

  1. 名詞
bel複數: 貝耳(測定電學或聲學功率的單位)

    
                        
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例句

                

                    
    
                                                    
  1. 
                                Using the laws of logarithms this gives 15log 10 10 = 15 bels                            
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  2. 
                                The base-10 logarithm of the ratio of the two power levels is the number of bels .                            
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  3. 
                                A difference of 2 bels corresponds to an increase of 10 x 10 or 100 times in intensity.                            
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  4. 
                                The noise of a jet aircraft expressed in bels is given by log 10 (I/I 0 ) = log 10 10 15                            
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  5. 
                                The number of decibels is ten times the number of bels (equivalently, a decibel is one-tenth of a bel).                            
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