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就装配式冷库非稳态测试中传热系数计算时存在的不稳定性作了理论分析，给出了库内空气温度函数的性质，提出了避免传热系数计算不稳定性的方法，并得到了试验的证明。
The instability of the heat transfer coefficient calculation in the unsteady test of the assembled cold storage is analyzed theoretically. The properties of the air temperature function in the storage are given. A method to avoid the instability of the heat transfer coefficient is proposed. Proof of the experiment.