因此看来，原油的开采、输送是全世界石油行业所面临的重大问题。
Thus, it seems, the exploitation of crude oil, transmission oil industry all over the world are facing major problems.
在石化市场周期性调整和全球经济衰退的双重压力下，世界石油石化行业遭受重创。
Under a dual pressure from the periodical market adjustment and the global economic recession, the global petroleum and petrochemical industry has suffered a heavy loss.
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