六十五岁以上与 未满十五岁人口相互对比的老化指数(aging index)在1992 年底为26.41％，2001 年底跃 升为42.33％，大大增加了15.92％之多，显示了高龄化与少子化对人口变迁之双重影响。
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anti-aging index 抗老化系数
aging index of upwelling aiu 上升流水体老化指标
Aging Hardening Index 时效硬化指数
index aging 寿命指标
Global Aging Preparedness Index 全球高龄化准备指数
country index on aging 老年问题国家索引
It is shown through accelerated aging tests that among all materials D1308, D1311 with null- LOX-1, LOX-2 and LOX-3 have the highest germination ratio and the lowest aging index ;
对水稻脂质氧化酶（LOX）同工酶缺失的单体及聚合体人工老化实验研究表明：不同LOX的缺失突变体之间，以LOX-1，LOX-2、LOX-3全缺的D1308、D1311的发芽率始终最高，老化指数最低；
The evaluation of nerve cell aging index: The level of lipofuscin (relative fluorescent value) index of cells aging was detected by micro-spectrofluorometer to reflect the degree of cell aging;
评估神经细胞变化的指标检测：采用显微荧光分光光度计测定细胞老化指标脂褐素水平（相对荧光值）反映细胞老化程度；
The wind today was exceptionally strong. I even doubted if this really help accelerate the aging of the faces of the pedestrians, raising the wrinkle index.
今天的天气风格外的大，我甚至怀疑这么大的风的确能够加速路上行人脸上皮肤的老化，进一步增加皱纹指数。
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