六
方
最
密
堆
积
l
i
ù
f
ā
n
g
z
u
ì
m
ì
d
u
ī
j
ī
Definitions
1. hexagonal close-packed (HCP) (math)
Components
六方
liù fāng
–
hexagonal
最密堆积
zuì mì duī jī
–
close-packing of spheres (math)