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油品质量升级对我国各类油企的影响不尽相同,国企需要化解投资和时间的双重压力,地炼则陷入改与不改的两难处境。
The impact of oil quality upgrades on various oil companies in China is different. State-owned enterprises need to cope with the dual pressures of investment and time, and local refining is caught in the dilemma of changing and not changing.