本文还对几种光栅的制备过程，做了分析。
Meanwhile, the making process of several kinds of optical grating is also analysed.
精制工艺是中药注射剂制备过程的关键环节。
Purification process is important in the preparation of injection of TCM.
结果处方配伍及制备过程合理，临床观察疗效确切。
Results of the combined prescription and reasonable process of preparation, clinical observation of the exact effect.
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