得用torch燒紅,然後澆水,因為那個東西材料脆,在溫度劇烈變化下會碎,然後再用小針把碎片掏出來。
得用torch燒紅,然後澆水,因為那個東西材料脆,在溫度劇烈變化下會碎,然後再用小針把碎片掏出來。
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