日本一家公司研制成一种可用来煮米饭的塑料包装袋。该包装袋由两层材料复合而成 ,外层是耐热性很好的尼龙薄膜 ,内层是聚乙烯薄膜 ,袋上还有按米量放水的水位线。使用时 ,只需把生米放入袋中 ,加入一定比例的水 ,将整个袋放到锅里煮 2 0分钟 ,米饭即煮熟可食。这种可煮饭的包 A Japanese company developed a plastic bag that can be used to cook rice. The bag is made of two layers of composite material, the outer layer is a good heat-resistant nylon film, the inner layer is a polyethylene film, the bag there is a meter water level of water lines. Use, simply put the raw rice into the bag, add a certain percentage of water, the whole bag into the pot to cook 20 minutes, cooked rice that is edible. This package can be cooked