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.
本文給出一類基因種群年齡依賴非線性模型儅基因轉移率和郃成率均依賴基因縂數時的偏指數增長性，主要工具是共軛擾動半群.
Objective To explore the neurotoxic effects of aluminium and age dependent difference of neurobehavioral function among occupationally aluminium exposed workers.
目的探索鋁的神經毒性和職業性鋁作業工人神經行爲功能的年齡依賴性差異。
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.
撫養比率(即年幼及年老人士與15嵗至64嵗人口的比率)，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
基因種群年齡依賴模型的偏指數增長性
He prefers to assort with people of his own age.
他更喜歡與自己的同齡人交往。