n a small porous bowl made of bone ash used in assaying to separate precious metals from e.g
n an adornment (as a bracelet or ring or necklace) made of precious metals and set with gems (or imitation gems)
an adornment (as a bracelet or ring or necklace) made of precious metals and set with gems (or imitation gems)
n a decorative work made of wood and covered with lacquer and often inlaid with ivory or precious metals
a system of weights used for precious metals and gemstones
rare precious metals
[经] 稀有贵金属
