refrigeration
n[U]
(of food, etc) refrigerating or being refrigerated, in order to freeze or preserve (指食物等)冷冻, 冷藏
Keep perishable foods under refrigeration. 把容易变质的食物冷藏起来.
[attrib 作定语]
the refrigeration industry 制冷工业.
The Native Americans caught and trained them and were then able to use them to carry their goods when they travelled from one camping ground to another.