freshness preservation

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1.

The vacuum freshness preservation box comprises a box body , a cover body , an inflating valve and an air pumping valve .

真空保鲜盒包括盒体，盖体，充气阀和抽气阀。

3.

Freshness preservation of Chinese bayberry during simple low-temperature storage

杨梅简易低温贮藏中的保鲜研究

4.

Effects of freshness preservation on cut gypsophila flowers harvested in advance

满天星切花提前采收贮藏保鲜效应研究

5.

Freshness Preservation Principle and Technique of Fresh Tea Leaves

茶鲜叶的保鲜原理与技术

6.

Influence of Plant Extracts on Freshness Preservation of Mutton and Beef

植物提取物对牛羊肉的保鲜效果

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