四进制数
The North China Plain is an area where much research in Quaternary geology has been done and a large number of 14C dating data is available from published materials.
华北平原是我国研究程度较高的地区,历年来积累了大量的14C测年资料。
The archeological methods make it possible to determine the age of Quaternary geology, especially Holocene. The North China Plain is an area where much research in Quaternary geology has been done and a large number of 14C dating data is available from published materials.
考古学方法为解决地质时期第四纪,尤其全新世的年代问题提供了方便,在地质、地貌等研究中得到应用。华北平原是我国研究程度较高的地区,历年来积累了大量的14C测年资料。
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