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[期刊论文] 作者：XuYun,LongJun,ShaoXinjun,
来源：中国炼油与石油化工：英文版 年份：2003
The restriction on sulfur level in gasoline has been increasingly tightened. The U.S.Tier Ⅱ regulation requires a reduction from average 340ppm to 30ppm from 2...
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