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| dating Any of several techniques such as radioactive dating, dendrochronology, or varve dating, for establishing the age of rocks, palaeontological or archaeological specimens, etc. (诸如辐射测龄、树轮年代学或纹泥测龄的一些技术，可以用来推估岩石、古生物学或考古样本的年代。) | |||
| 定年法: 115 phrases in 21 subjects |