据中国石油和化学工业协会预测,2006年,全国聚乙烯产能将达722．5万吨,产量将达555．4万吨,装置平均开工率为77％；2007年,全国聚乙烯产能将达767．5万吨,产量将达623万吨,装置平均开工率为81％。而2005年,全国 According to the prediction of China Petroleum and Chemical Industry Association, in 2006, the nationwide polyethylene production capacity will reach 7,225,000 tons and the output will reach 5,554,000 tons, with an average operating rate of 77%. In 2007, the national polyethylene production capacity will reach to 7,675,000 tons, the output will reach 6.23 million tons, the average operating rate of 81%. In 2005, the country