The bottom of the metal is made of black crystal and metals.
纪念章底座用黑水晶及金属搭建。
Performance: anhydrous ferric chloride as black brown crystal, specific gravity 2.898.
性能：无水氯化铁为黑棕色结晶，比重2。
At this point, Black Crystal Zhang and white sergeant walked over from the east.
就在这时，黑晶张和白警长从东面走了过来。
With its shiny black eyes in Jet crystal, it watches the world go by.
闪亮的黑色水晶眼睛注视着眼前一切。
With its shiny black eyes in Jet crystal, it watches the world go by.
闪亮的黑色水晶眼睛注视着眼前一切。
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