age feature meaning in Chinese

年龄特征
时代特点

Age feature of the world elite track and field athletes
中外优秀田径运动员竞技年龄特征之比较研究
Even if it ' s genuine it ' s not much valuable ! first no clear age feature , second rough work , and third rust corrosion
就是真的收藏价值也不高的!年代特征不明,此其一;工艺过于粗糙,此其二;锈蚀过于浮躁,此其三
He emphasized that catalogue classification should do some corresponding adjustment according to the changes of books itself and academic development . classification should have itself age feature
他强调目录分类法应根据图书自身的变化及学术的发展变化而作相应的调整，分类法具有时代特点。
On the base of researching the theories of the enterprise ' s sustainable development , the thesis established validity , viable and having the ages features , the index sign system of the enterprise ' s sustainable development ' s evaluation , which includes three aspect - sustainable development ' s ability , sustainable development ' s coordination and the enterprise ' s support of exterior environment
在研究企业持续发展理论的基础上本文从三个方面- -持续发展能力、企业持续发展的协调性和外部环境的支持力建立了有效、可行，并具有时代特色的企业持续发展评价指标体系。