是指食品在生产、储存、运输、销售直至消费前的各个环节中始终处于适宜的低温环境中，以保证食品质量，减少食品损耗的一项系统工程。
本文重点论述了食品冷藏链和速冻食品的概念。
Mainly discusses concepts of food cold chain and fast-frozen food.
据此，着重分析了食品冷藏链的主要环节、制冷技术与速冻设备，提出了制冷系统的节能措施。
The major points of the cold storage chain, chilling technology and equipment were analyzed, and methods to improve the energy utilization in the storage chain are proposed.
由于冷链食品在配送环节受到的冷藏保护较为薄弱，因此本文着眼于从流程的角度来研究冷链配送。
Because the food is under a weak protection during the distribution process, this paper focuses on researching on the cold chain distribution from the point of process analysis.
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