Other factors, such as life-span, population density and fragmented time plant population has experienced, may also influence the genetic consequences of fragmentation.
其他因素也可能影响片断化的遗传后果，如植物的生活史、种群密度及种群经历的片断化时间等等。
The retiring age is determined by the average life span of population of the whole country and the conditions of labors supply and demand.
退休年龄由各国各地人口的平均寿命以及劳动力供求状况所决定，它对养老金的支付有重要影响作用。
With the fertility reducing and the average life span increasing, There appears population aging trend in Korea.
随着近几十年生育率的持续下降及平均寿命的不断提高，韩国人口逐渐出现了老龄化趋势。
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