- ditrigonal dipyramidal class
- ditrigonaldipyramidalcla
- 复: repeated; double; duplicate
- 三方: trilateral; three sides; tri ...
- 双锥: bipyramid
- 三方双锥类: trigonal dipyramidal class
- 复三方双锥: ditrigonal bipyramid; ditrigonal dipyramid
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