外国买家尝试中国智能产品。摄影：界面新闻记者方卓然
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，详情可参考wps
Block WAND works by maintaining an upper bound on how much score any document within a block of document IDs could possibly achieve. As the engine fills its Top K heap, it establishes a threshold: the lowest score currently in the heap. Before evaluating a block, the engine checks the block’s maximum score. If that maximum is below the threshold, the entire block is skipped without scoring individual documents.
МИД Ирана заявил о «начале конца» ООН20:48