多少年来,水果蔬菜保鲜在世界上一直是个难题。在我国,虽然也有利用减压、速冻、辐射等方式进行保鲜的林业单位和果农菜农,但由于投资大,成本高,特别是某些技术问题尚未过关,一直没能大面积推广。至今那些保鲜土法依然是人们主要的保鲜手段,而经济效益并不是很高。硅窗,又名硅橡胶保鲜膜。把它镶嵌在塑料上做成袋子、帐 For many years, fruit and vegetable preservation in the world has always been a problem. In our country, though there are forestry units and fruit-vegetable farmers who use the methods of decompression, quick-freezing and radiation, they have not been able to promote large-scale because of large investment and high cost. In particular, some technical problems have not been cleared yet. So far those preservation of soil and law is still the people’s main means of preservation, and economic efficiency is not very high. Silicon windows, also known as silicone rubber cling film. Put it in plastic bag made on the account