duàn
to calcine
variant of 鍛|锻[duan4]
暗煅
àn duàn
sealed pot calcination (TCM)
煅烧
duàn shāo
to calcine (purify by heating)
煅炉
duàn lú
forge
煅石膏
duàn shí gāo
plaster of Paris
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