Aircirculation is one of the most important factors in protecting refrigerated loads of perishable foods.
在保证易腐食品的冷藏运输时，空气循环是最重要的因素之一。
2
Aircirculation carries product heat and the heat which penetrates the walls, floors, and ceiling of the trailer to the refrigeration unit where it can be removed.
空气在循环过程中会带走农产品本身的热量，也会带走那些从门、地板和拖车的顶部渗透进来的热量。
3
The product should be loaded on pallets or floor racks when space for aircirculation under the load is inadequate due to floor design.