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The key of keeping fresh lettuce under cold chain is pre-cooling.
结球生菜冷链流通保鲜的关键是预冷。
youdao
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Its performance has a directly effect on pre-cooling results.
其性能的优劣，直接关系到预冷的效果。
youdao
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Its performance has a directly effect on pre-cooling results.
其性能的优劣，直接关系到预冷的效果。
youdao