人口的英語翻譯：

number of people in a family; populace; population
【醫(yī)】 population
【經(jīng)】 man day

普查的英語翻譯：

【經(jīng)】 general investigation

登記的英語翻譯：

register; book; check in; enroll; enregister; inscribe
【計】 journaling; log-in; registration
【醫(yī)】 register; registration
【經(jīng)】 book the order; enrollment; keeping of record; recordation; register
registration; registry