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采用ＡＥＴ方法分析了城市职业中５７种常见工种，在各工种２１６条ＡＥＴ项目评分的基础上，用系统聚类方法将５７个工种分为１２个聚类组。其中５个组属于体力劳动类型，２个组属脑力劳动类型，另外５个组则属于体脑混合类型。进一步对聚类工种中的物质加工类和管理事务类进行工作图象分析。职业紧张因素分析结果表明，不同聚类组在紧张因素的数目和种类上不相同，高紧张因素暴露水平的工作类型有司机、手术室护士和医务工作类。劳动时间长、缺少工间休息、不良劳动环境和不合理的劳动制度是多数工作类型的常见紧张因素。
AET was used to analyze 57 kinds of common occupations in urban occupations. Based on the scoring of 216 AET projects in different occupations, the 57 types of work were divided into 12 clusters by systematic clustering method. Five of the groups belonged to the type of physical work, two belonged to the type of mental work, and the other five belonged to the type of body-brain mixed. Further analysis of the working images of the material processing and management services in the clustering work. The results of occupational stress analysis showed that the number and types of stressors in different cluster groups were different, and the driver types, operating room nurses and medical work classes were the major exposure types of high stressors. Long working hours, lack of rest breaks, poor work conditions and an unreasonable labor system are common causes of stress for most types of work.