将搁板温度与制品温度随时间的变化记录下来，即可得到冻干曲线。

The shelf temperature and the product temperature changes with time recorded, can be obtained by freeze-drying curve.

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通过分析季节冻土区的温度分布规律，建立了温度随时间的变化函数。

By analyzing the rule of temperature distribution in seasonal frozen soil area, the function of temperature with time is established.

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实验结果表明： 盘缘区域温度随时间的变化率大于中心区域温度随时间的变化率；

The results show that the rate of temperature vs time at large radium is greater than that at small radius.

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