lapilli 

  1. 名詞
lapillus複數: 火山礫

    
                        
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例句

                

                    
    
                                                    
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                                Columnar basalt rests on lapilli tuffs.                            
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  2. 
                                LAPILLI -- Pea- to walnut-size pyroclasts (2 to 64 mm).                            
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                                Tephra is volcanic ash, lapilli , volcanic bombs or volcanic blocks.                            
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                                The volcano also erupted lapilli (a form of tephra) and pumice bombs.                            
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                                At 4 PM, coarser sandy material and some pumice lapilli began to fall.                            
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