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本文基于对近一些年来国外有关文献进行的调研，综述了提高采收率用化学剂（流度控制剂、深部剖面调整剂、防窜剂）的发展现状及前景
Based on the investigation of relevant foreign literature in recent years, the current situation and prospects of chemical recovery (flow control agent, deep profile regulator and anti-channeling agent)