德国市场上出现了一种低廉、轻便、省电和实用的家用保鲜包装盒。利用这种体积不大的包装盒来存放水果、蔬菜和鱼肉，可以长时间保鲜；用于包装面包和糕点等，可防干硬；包装其他物品，也可防止霉变。其最大特点是省电，只是在包装时消耗一些电能，便可达到包装品长期保存的目 A cheap, lightweight, energy-saving and practical home-use fresh-keeping box appeared on the German market. Use this small box to store fruits, vegetables and fish for a long time; for bread and cakes, dry and hard; pack other items and prevent mildew. Its most prominent feature is power saving, which consumes only some amount of power during packaging and can achieve the long-term preservation of packaged goods