您要查找的是不是：
- 测年dating
- 万年all ages
- 年中midyear
- 流年fleeting time
- 四年four years
- 多年来for the past many years
- FT测年FT dating
- 几十年several tens of years
- 年金rente
- 年少juniority
- 一年半a year and a half
- 一年多more than a year
- 年来over the last ... years
- ESR法测年TL/OL
- Sm-Nd测年Bayan Obo
- U-Pb测年U-Pb dating
- 化学测年chemical dating technique
- 断层测年dating
- 测年数据dating data
- 测年矿物dating mineral
