age-dependence

基本解释

We give the asynchronous exponential growth of a genetics model with age dependence,where the transition rate and the fertility rate depend on the density of total genetics.
本文给出一类基因种群年龄依赖非线性模型当基因转移率和合成率均依赖基因总数时的偏指数增长性，主要工具是共轭扰动半群.
Objective To explore the neurotoxic effects of aluminium and age dependent difference of neurobehavioral function among occupationally aluminium exposed workers.
目的探索铝的神经毒性和职业性铝作业工人神经行为功能的年龄依赖性差异。
The age dependency ratio - the ratio of the young and the aged to people of age 15 to 64 - dropped from 438 per 1000 in 1987 to 398 per 1000 in 1997.
抚养比率(即年幼及年老人士与15岁至64岁人口的比率)，由一九八七年的千分之四三八降至一九九七年的千分之三九八。
Asynchronous Exponential Growth of a Genetics Model with Age Dependence
基因种群年龄依赖模型的偏指数增长性
He prefers to assort with people of his own age.
他更喜欢与自己的同龄人交往。