Along with more attention being paid to environment protection worldwide, most countries have made laws or regulations to restrict the sulfur content in fuel oil with a more rigorous standard.
随着世界环保法规的日趋严格，世界各国对燃料油品中的硫含量提出了更严格的要求。
Along with more attention being paid to environment protection worldwide, most countries have made laws or regulations to restrict the sulfur content in fuel oil with a more rigorous standard.
随着世界环保法规的日趋严格，世界各国对燃料油品中的硫含量提出了更严格的要求。
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