Food packaging today is not only for storing food, but for keeping food safe, extending shelf-life and improving appearance, as well as for promotion and satisfying consumer wants.

食品包装的作用，已超越了保存食品的原始目的，不断廷伸出安全卫生、延长保质期、美化产品、品牌宣传和迎合消费者要求等多元化功用。

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Using own-blowing air modified packaging films, choosing new-pick sauteed vegetable to examine the effects to fresh-keeping.

使用自行研制的气调包装膜，选用新鲜采摘的油麦菜，进行气调包装研究。

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This part includes the principles and methods of the preservation of electronic evidence, the things that should be noticed in packaging and transporting, and keeping it safe.

包括保全应遵循的原则、保全的方法、在包装和运输时应注意的问题以及对证据的保管。

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These plastics not only serve as superior barriers to the flow of oxygen and carbon dioxide, keeping all kinds of products fresher longer, but also block out smells and prevent the packaging from absorbing any of the flavor or vitamin content of the food.

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