人口统计学还包括对非生物物体的研究，如灯泡、出租车和建筑物，因为这些也属于种群。
Demography also includes the study of non-living objects like light bulbs and taxi cabs and buildings because these are also populations.
所有这些都尝试将主要的发展趋势，如：人口统计学、全球化影响以及新技术的影响等都考虑进来。
These attempt to encapsulate major trends such as changing demographics, the effects of globalisation or the impact of new technologies.
也包括人口统计变量的受访者，如年龄，职业和收入。
Also included are demographic variables for respondents, such as age, occupation, and income.
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