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wood tar 木焦油。

wood thrush

The major achievements are : 1 the extraction of the burning oil of biomass from wood tar by distillation without any other goods of chemistry , in this case no effect to the physical properties of the burning oil of biomass 本課題的主要研究成果如下: 1采用直接蒸餾方法從木焦油中提取其可燃成分(簡稱生物質燃油) ,不加入其他任何化學物品,這樣不會影響生物質燃油的物理性能。