hexagonal close packing

one of two densest possible sphere packings in 3D Euclidean space

en-US/hɛkˈsæɡənəl ˈkloʊz ˈpækɪŋ/
en-GB/hɛksˈæɡənl kləʊs ˈpækɪŋ/

ক্যাটাগরি:

close-packing of equal sphereslatticecrystal structure