生产高质量的水果蔬菜需要相当的技术。但要把这些产品完好无损地送到消费者手中,必须包装。包装不仅要方便地把水果蔬菜从生产者手里送到消费者手中,而且还要很好地保护产品,使之经得起碰、摔等恶劣运输条件,并使产品外貌保持美观。如果在一个小镇,销售网路短,这是比较容易的。但当销售系统网路长而复杂,产品须经过各种运输 Producing high quality fruits and vegetables requires considerable skill. However, these products must be delivered intact to consumers. Packaging is not only convenient to bring fruits and vegetables from the hands of producers to consumers, but also to protect the products so that they withstand the harsh transportation conditions such as bumping, throwing and keeping the appearance of the products beautiful. If in a small town, sales network is short, it is relatively easy. However, when the sales system network is long and complicated, the products have to go through various kinds of transportation