wood tars造句

• 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
  本课题的主要研究成果如下：1采用直接蒸馏方法从木焦油中提取其可燃成分(简称生物质燃油)，不加入其他任何化学物品，这样不会影响生物质燃油的物理性能。