核以及核两用物项出口，应当遵守国家有关法律、行政法规的规定，不得损害国家安全或者社会公共利益。
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这些书是刚买来的，有些甚至是新的。没有人会读它们，它们存在的唯一目的，就是被销毁。。业内人士推荐同城约会作为进阶阅读
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Instead of perturbing each pixel in the input image at random, we can choose to dither by a predetermined amount depending on the pixel’s position in the image. This can be achieved using a threshold map; a small, fixed-size matrix where each entry tells us the amount by which to perturb the input value , producing the dithered value . This matrix is tiled across the input image and sampled for every pixel during the dithering process. The following describes a dithering function for a 4×4 matrix given the pixel raster coordinates :