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| 11. | DDT caused the birds' eggshells to be extremely thin and fragile, so that the young died before they |
| DDT使卵壳变得特别薄而且易碎，因此小鸟常常在孵化前夭折。 |
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| 12. | color image is presented based on the rapport of wavelet coefficients and the choice swatch method; so |
| 利用层间小波系数的关系,并结合新颖的样本选取方法提出了一种多功能彩色图像数字水印嵌入方法,使鲁棒数字水印和易碎数字水印共存于同一图像中. |
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