... 人口更替 population replacement 人口更新regeneration of population 人口构成 population composition ...
双语例句
1
The regenerationofpopulation of E. henryi was poor and the population size was declining.
种群更新不良， 具有明显的衰退趋势。
2
Natural regeneration and dispersal of artificial S. caseolaris population had more or less occurred, which may increase the structural complexity and stability of the artificial population.
海桑人工种群已经出现某种程度的自然更新和扩散，这将有利于增加海桑人工种群的结构复杂性和稳定性。
3
Influence of the slopes with different directions on populationregeneration was also studied, and it showed that the slope direction was one important factor for regeneration.