Raw materials such as base oil, package additive and thickener are reviewed at laboratory following acc regulation, accordingly getting the formulation.

实验室中按照ACC规范，对基础油、复合剂、稠化剂等原材料进行考察，确定了配方。

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Raw materials for producing tipping base paper, quality index, the production process and operation method, and equipment performance of paper machine are four respects of the influence factors.

生产水松原纸所使用的原料、纸张的质量指标、生产工艺和操作方法、纸机的装备性能是影响因素的四个方面。

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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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The easy answer is that, after years of under-investment by producers, particularly during the technology boom of the 1990s when most investors considered base metals dirt, the world has finally woken up to the fact that there are not enough raw materials to go round.

ECONOMIST: The magnetism of metals