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1·Some kinds of ten used tests of low temperature properties and their use methods were mainly introduced, including test of fragileness temperature' TR test and Gehman test.

主要介绍了常用的几种低温性能试验及如何使用，其中包括脆性温度试验、温度回给试验和吉门试验等。

2·The experiments results show that this algorithm has a good robustness for the JPEG compression with the fixed coefficient, and a good fragileness for the illegal manipulation.

实验证明该算法对固定系数的JPEG压缩有较好的鲁棒性，并对图像的恶意篡改有较好的脆弱性。