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论述了国外尿素生产中几种主要工艺技术的最新进展；介绍了国外公司新技术和新工艺的开发、应用及其意义；并对我国的尿素生产技术和装置改造提出了相应的建议。
The latest progress of several major process technologies in urea production abroad is discussed. The development, application and significance of new technologies and processes of foreign companies are introduced. Some suggestions are put forward for the urea production technology and plant revamping in China.