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zeng1986kai(½ð±Ò+1):ллӦÖú£¡ 2010-02-27 21:15
bitwdf(½ð±Ò+1):xiexie 2010-03-01 21:11
La(NO3)3 decomposes from 400 degree, La2O3 finally formed above 600 degree.
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