Low sulfur content and gradual strict sulfur specification of diesel have become the trend of diesel fuel quality and standard all over the world.
柴油低硫化及其含硫标准的日趋严格，是世界各国柴油产品质量与标准的发展趋势。
Low sulfur content and gradual strict sulfur specification of diesel have become the trend of diesel fuel quality and standard all over the world.
柴油低硫化及其含硫标准的日趋严格，是世界各国柴油产品质量与标准的发展趋势。
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