中游的优势在于规模效应显著，边际成本随业务扩张不断递减，且客户迁移成本高，黏性极强。但行业竞争激烈的同时，也潜藏着两大风险：一是价格战频发，压缩盈利空间；二是高度依赖下游需求持续性，若AI应用商业化进程延迟，算力租赁需求可能出现下滑。
Monica de Bolle says that Venezuela's state oil firm needs to be rebuilt
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这部经塔可夫斯基之子授权、直译自俄文的“精神手记”，收录了塔可夫斯基生命最后16年的私密絮语，填补了此前英文节选本《时光中的时光》的诸多空白，第一次完整呈现了他的坚守和摇摆。