The porosity for cubical packing (the least compact arrangement) is 47.6 per cent, and that for rhombohedral (the most compact arrangement) is 25.96 per cent.

 
  • 立方形堆積(最不松散的堆積)的孔隙度為47.6%25,菱形堆積(最緊密堆積)的孔隙度為25.;96%25。
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