《天工开物·下篇·五金》
这些都要先经淘洗然后进行冶炼，才成为整颗整块的金子。
皆待先淘洗后冶炼而成颗块。
These must first be washed and then smelted to become whole gold nuggets.
<s>[INST] Kindly elucidate the central themes in this passage in English: 皆待先淘洗后冶炼而成颗块。 [/INST] These must first be washed and then smelted to become whole gold nuggets.</s>
Kindly elucidate the central themes in this passage in English: 皆待先淘洗后冶炼而成颗块。
user
These must first be washed and then smelted to become whole gold nuggets.
assistant