An integrated industrial system has been formed in (China's) petroleum refining industry.
我国炼油工业已经形成完整的工业体系。
The challenge facing China's petroleum refining industry is analyzed, and the gap on either technology or managing mode compared with developed countries is pointed out.
分析了我国炼油工业面临的挑战，指出我国炼油工业与国外发达国家相比，无论在技术上还是管理模式上均存在差距。
With the increasingly stringent national environmental rules, the production of low sulfur gasoline has become an urgent task of the petroleum refining industry in the 21st century.
随着国家环保法规的日益严格，生产低硫汽油是炼油行业在21世纪面临的迫切任务。
Oil refining, Petroleum, Chemical industry, Ocean developing industry, paper industry, fertilizer industry.
炼油工业、石油工业、海洋开发、造纸工业、化肥工业等。
Industry: petroleum production and refining, food processing, light consumer goods, textiles.
工业：原油制品与提炼，食品加工，轻工业产品，纺织。
Meanwhile the refining process was improved, using crystallization from petroleum-benzene instead of high vacuum distillation. The process was simplified for the benefit of industry production.
同时改进了精制工艺，用石油醚-苯进行结晶代替高真空蒸馏，简化了工艺，有利于工业化生产。
Meanwhile the refining process was improved, using crystallization from petroleum-benzene instead of high vacuum distillation. The process was simplified for the benefit of industry production.
同时改进了精制工艺，用石油醚-苯进行结晶代替高真空蒸馏，简化了工艺，有利于工业化生产。
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