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平均期望寿命(又称平均寿命)的长短反映一个国家或一个地区物质文明和精神文明发展的程度。根据编制的寿命表计算而得的平均寿命,不受原有人口性别、年龄别构成的影响,因此不同地区、不同时期的人口平均寿命指标可以相互比较,是评价不同地区、不同时期人民卫生健康
The length of the average life expectancy (also known as the average life span) reflects the degree of material and spiritual civilization development in a country or region. The average life calculated from the prepared life table is not influenced by the gender and age of the original population. Therefore, the average life expectancy indicators of different regions and different periods can be compared with each other to evaluate the health of people in different regions and at different times.