As freeze drying (lyophilization) preservation has many significant virtues than many other long-term preservation methods, it has become one new research hotpot of long-term preservation of cells.

由于冷冻干燥法具有其他长期保存法无法比拟的一些优点，该方法己成为细胞长期保存方法中新的研究热点。

youdao

The results indicated: freeze-drying method could do the longest preservation (at least 15 years) while beef broth agar plate method did the shortest (only 2 to 3 months).

结果表明：冷冻干燥法保藏菌种时间最长（本实验室已保存15年）； 肉浸汤琼脂平板法保藏菌种时间最短（2～3月）。

youdao

Garlic powder made by fresh garlic after freeze-drying is mixed with water and forms a preservation liquid to keep vegetable fresh.

新鲜大蒜经冷冻干燥制得蒜粉，与适量水混合成保鲜液后对蔬菜施行保鲜处理，保鲜效果明显。

youdao