常住人口

permanent population

流动人口

floating population

盲流

the unemployed migrant people

劳动力

labor force

外来工

migrant worker

临时工

seasonal worker

人口普查

census

人口基数

population base

人口稠密

densely populated

人口稀少

sparsely populated

人口爆炸

population explosion

人口过剩

overpopulation

出生率

birth rate

死亡率

mortality rate

自然增长率

natural growth rate

人口老化

aging of population

合法婚龄

legal age for marriage

结婚高峰

marriage boom

生育高峰

baby boom period

计划生育

family planning