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We can see that the threshold map distributes perturbations more optimally than purely random noise, resulting in a clearer and more detailed final image. The algorithm itself is extremely simple and trivially parallelisable, requiring only a few operations per pixel.
def put_db(item):
两家北美采购钇用于生产涂层的企业高管表示，因拿不到足够原料，不得不短暂停产，其中一家公司还开始拒绝较小及境外客户订单，将有限供应优先保证包括部分发动机制造商在内的大客户。