相对年代 meaning in Chinese

relative age
relative chronology
relative time

This paper , based on u - senes dating of speleothem formations and fossil materials , provided the reliable age of this cite , and further discussed the important implications of the results to human evolution research in china
但该遗址至今只有“与柳江人年代相当”的相对年代估计。本文报道?前洞遗址的铀系测年结果，并讨论该遗址年代位置新证据对我国现代人起源研究的意义。