Combining several preparation methods could be very effective.
多种制备方法结合使用将非常有效。
The different preparation methods of orange pigments were studied.
对橙色素产品的不同制备方法进行了研究。
CONCLUSION: This preparation methods was easy to operate, the quality was stable and controllable.
结论：该制剂制备工艺简单，质量控制方法可行。
The method is stable, accurate, is testing the preparation of good quality standard methods.
该方法稳定、准确，是检测该制剂质量标准的优良方法之一。
The method is stable, accurate, is testing the preparation of good quality standard methods.
该方法稳定、准确，是检测该制剂质量标准的优良方法之一。
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