The temperature of oils stored in a tank decreases with time, with temperature drop being a function of time and heat conduction.
在储存油品的容器内，油品的温度随储存时间的增加而逐渐降低，因而油品的这种温降与时间、传热等有一定的关系。
At the same time, we introduce a kind of two dimensional inverse heat conduction problems which do not convect with outer space in doing the compression, and we have got the expected result.
同时将一类与外界无热交换的二维逆热传导方程应用到图像压缩中，并取得了预期的效果。
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