The effect of different impact damage on the characteristic of compression failure through macroscopical observation at the side of the fracture on the compressed laminate was studied.
对压缩后层压板的断口进行宏观观察，分析不同等级损伤对压缩失效特征的影响。
JPEG2000 is a new image compressing standard, it has the characteristic of high compression ratio and low distortion.
JPEG2000是一种新的图像压缩标准，具有高压缩率、低失真度和灵活高效的特点。
Experiment results reveal that our method has not only high compression efficiency, but also better characteristic of coding and delivering comparing with traditional compression methods.
实验结果表明，该方法与传统近无损压缩方法相比，不仅具有高压缩率，而且具有更好的编码传输特性。
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