燕京理工学院英译汉大作业 1 所选译文位置：《制药工程专业英语》 Unit10，P108 外文文献原稿和译文 原 稿 The basic crude process that had been employed for extraction and the accompanying extraneous factors determines the purification process 。The purification process should be designed to decolorize the Heparins in as gentle a manner as possible ,and to minimize alterations in the molecule 。 The oxidizing agents used in scheme 1,and t