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使用非稳态法中的积分法对冷库围护结构传热系数进行现场测定试验，在试验中首次提出变加热法以缩短试验周期、提高测试效率，并取得了满意的结果。
The integral method in the unsteady method is used to test the heat transfer coefficient of the cold storage enclosure structure. In the experiment, the variable heat method is proposed for the first time to shorten the test period and improve the test efficiency. Satisfactory results have been obtained.