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Air transport means ordinary air transport. When transporting large quantities of goods、 the general freight will be cheaper than express delivery. However、 they need to deliver the goods themselves、 declare customs and even apply for inspection. It may also inspect the goods.

Express delivery is not necessarily air transportation. If it is international transportation、 the delivery time in some places is not necessarily faster than ordinary air transportation. But usually、 there is no need for customs declaration and inspection、 and it is convenient to pick up and deliver goods at home.

International express and international air transportation are both air transportation services. The difference is that international express can provide door-to-door service、 which is more convenient and fast、 and is more suitable for small packages; However、 international air transport is generally used to ship goods to the airport of the destination country、 which requires customers to clear customs and pick up the goods themselves、 and is more suitable for large quantities of goods; The price difference between the two is large、 and each has its own advantages.

According to the query of market sales big data、 stores use optimization algorithms to predict and analyze local sales before customers submit orders、 and enter relative regional warehouses in advance to save storage、 distribution and transportation costs.