Bark may be used as raw material for paper-making.
树皮可以做造纸的原料。
Exactly speaking, the raw materials are not only paper, but also gold foil, silver foil, bark, leaf, leather, cloth or fur.
没错来说，不仅是原材料纸张，而且金箔，银箔，树皮，叶，皮，布或毛皮。
Base on the choice of various raw materials, fresh bark was chosen to extract Iridoids compounds such as geniposidic acid (GPA), aucubin (AU) and geniposide (GP).
通过对原材料进行研究，筛选出杜仲鲜皮为提取环烯醚萜化合物京尼平甙酸（GPA）、桃叶珊瑚甙（AU）和京尼平甙（GP）的原料；
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