However in order to keep the share of market it has need toapproach the international price. but the competetive ability and the profit lev...

• 文章选择国内有代表性的典型炼油厂为研究对象，就炼油厂实际生产和经营中各种要素进行分析对比和探讨，找出存在的差距和潜力，提出改的措施和对策。