tetrahedral 

  1. 形容詞
有四面的, 四面體的

    
                        
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例句

                

                    
    
                                                    
  1. 
                                This prismatic tetrahedral symmetry is order 48.                            
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  2. 
                                A four cell tetra is a level 1 Sierpinski Tetrahedral .                            
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  3. 
                                Only three tetrahedral numbers are also perfect squares.                            
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  4. 
                                I myself had trouble stabilising this regular tetrahedral .                            
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  5. 
                                Figure 2. shows the tetrahedral elements around the nozzles.                            
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