六方最密堆积 liùfāngzuìmìduījī hexagonal close-packed Origin Definitions Defs Strokes Stroke Words Sentences Sents 六方 liùfāng hexagonal having the shape of a hexagon or a six-sided cross-section最密堆积 最密堆積 zuìmìduījī close-packing close-packing of spheres in mathematics or physics