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应用直线回归方程研究全国铁路系统12年来卫生人力资源的信息资料,预测2000年全国铁路卫生人员总数为130633人至163319人。
The linear regression equation is used to study the information materials on health human resources of the national railway system in the past 12 years. The total number of national railway health workers in 2000 is predicted to be 130,633 to 163,319.