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2月26日，老牌轴承企业斯凯孚宣布，SKF Vertevo将成为斯凯孚汽车业务在作为一家独立公司时所使用的名称。此项宣布标志着斯凯孚在推进汽车业务分拆上迈出重要一步。按照规划，斯凯孚目标在今年第四季度将SKF Vertevo在纳斯达克斯德哥尔摩证券交易所上市，但该计划仍需董事会提出分拆及上市方案并获得股东会批准。（界面新闻）
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The problem gets worse in pipelines. When you chain multiple transforms — say, parse, transform, then serialize — each TransformStream has its own internal readable and writable buffers. If implementers follow the spec strictly, data cascades through these buffers in a push-oriented fashion: the source pushes to transform A, which pushes to transform B, which pushes to transform C, each accumulating data in intermediate buffers before the final consumer has even started pulling. With three transforms, you can have six internal buffers filling up simultaneously.
思路：单调递增栈 + k 控制删除次数。高位越小整体越小，遇更小数字时弹出栈顶大数（仅当 k0）；栈空且当前为 0 则跳过（避免前导零）；若遍历完 k 仍0，从末尾再删 k 位。