一、资料来源及方法 1.分析数据来自广州某综合大型医院1995年正在运行的百万元以上医疗设备有关原始购入价值、诊断人次、年收益、支出金额、检出阳性率或治疗好转率,采用全面调查与比例分析相结合的方法,预计残值率为3％,清理费用率为0.5％。 2.计算设备额定工作时数。由于一年有365天,除7天法定节假日和104个公休日作为大型设备的定期检修日,每 I. Sources and Methods 1. Analytical data The value of original purchases, diagnoses, annual income, expenditures, positive rate of detection, or treatment improvement rate of medical equipment of more than a million yuan that were operating in a large general hospital in Guangzhou in 1995 Using a combination of comprehensive investigation and proportional analysis, the residual value is expected to be 3%, and the liquidation cost rate is 0.5%. 2. Calculate the rated working hours of the equipment. Since there are 365 days in a year, except for 7 days of statutory holidays and 104 public holidays as regular maintenance days for large-scale equipment,