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初中化学课本P106〔实验3—3〕木材的干馏,课堂演示时需要时间较长,而且实验现象不够明显,现介绍我县大套中学徐石祥同志在实
Junior high school chemistry textbook P106 [experiment 3-3] wood dry distillation, the class presentation takes a long time, and the experimental phenomenon is not obvious enough, is now introduced my county secondary school Xu Shixiang Comrade in the real