Methods: Complex chitosan conduits were made from chitosan and carboxymethylchitosan by freeze drying method in proportion of 3 to 1.
方法： 用壳聚糖和羧甲基壳聚按3：1的比例采用冷冻干燥法制成壳聚糖复合导管；
The main purpose of this paper introduce the experiment method of freeze drying measurement technology in DSP control.
本文主要介绍在冻干机测试技术控制中采用DSP芯片控制冻干工艺的实验方法。
Vacuum freeze-drying, including the techniques of vacuum, freezing and drying, is a food processing method.
真空冷冻干燥是集真空技术、冷冻及干燥技术为一体的食品加工方法。
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