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yaofeng210(½ð±Ò+6,VIP+0):ллÁË~~ 1-6 18:10
since the content of B in A is not high,it can lead to the weak signal,so the powder of B can be prepared under the same heattreatment condition as that of A by adopting xerogel having the identical component with the B in A,and then the crystal and phase analysis can be carried on it.
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